Methods of Software Testing There are two basic methods of performing software testing: 1. Manual testing 2. Automated testing Manual Software Testing As the name would imply, manual software testing is the process of an individual or individuals manually testing software. This can take the form of navigating user interfaces, submitting information, or even trying to hack the software or underlying database. As one might presume, manual software testing is labor-intensive and slow.
Software testing is an important phase of the software development process that evaluates the functionality and quality of a software application. It involves executing a program or system with the intent of finding errors. Some key points:
- Software testing is needed to identify defects, ensure customer satisfaction, and deliver high quality products with lower maintenance costs.
- It is important for different stakeholders like developers, testers, managers, and end users to work together throughout the testing process.
- There are various types of testing like unit testing, integration testing, system testing, and different methodologies like manual and automated testing. Proper documentation is also important.
- Testing helps improve the overall quality of software but can never prove that there
Welingkar_final project_ppt_IMPORTANCE & NEED FOR TESTINGSachin Pathania
Software testing is an important step in the software development process to identify bugs and ensure quality. It is done at various stages including unit, integration, system, and acceptance testing. Automation testing helps test cases be run quickly and consistently. In conclusion, software testing is crucial to identify and remove errors, improving the performance and consistency of software products.
Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not. In simple words, testing is executing a system in order to identify any gaps, errors, or missing requirements in contrary to the actual requirements.
Software quality refers to how well a software product or service meets requirements and expectations. It is subjective as it depends on the perspective of the customer. Common aspects of quality include the software being bug-free, delivered on time and on budget, meeting requirements, and being maintainable. True software quality can only be determined by measuring how well the software serves its intended purpose from the viewpoint of all stakeholders.
1) The document discusses software testing principles, lifecycles, limitations and methods. It describes the different phases of software testing like requirements study, test case design, test execution, test closure and test process analysis.
2) It also discusses different levels of testing including unit testing, integration testing, system testing and acceptance testing. Unit testing checks individual program modules, integration testing verifies interface connections, system testing checks full application functionality, and acceptance testing gets customer approval.
3) The document provides objectives and features of good test cases and objectives of a software tester. It also outlines principles of testing like testing for failures, starting early, defining test plans, and testing for valid and invalid conditions.
This paper describes the different techniques of testing the software. This paper explicitly addresses the idea for testability and the important thing is that the testing itself-not just by saying that testability is a desirable goal, but by showing how to do it. Software testing is the process we used to measure the quality of developed software. Software Testing is not just about error-finding and their solution but also about checking the client requirements and testing that those requirements are met by the software solution. It is the most important functional phase in the Software Development Life Cycle(SDLC) as it exhibits all mistakes, flaws and errors in the developed software. Without finding these errors, technically termed as ‘bugs,’ software development is not considered to be complete. Hence, software testing becomes an important parameter for assuring quality of the software product. We discuss here about when to start and when to stop the testing of software. How errors or Bugs are formed and rectified. How software testing is done i.e. with the help of Team Work.
Software testing is an activity which is aimed for evaluating quality of a program and also for improving it, by identifying defects and problems. Software testing strives for achieving its goal (both implicit and explicit) but it has certain limitations, still testing can be done more effectively if certain established principles are to be followed. In spite of having limitations, software testing continues to dominate other verification techniques like static analysis, model checking and proofs. So it is indispensable to understand the goals, principles and limitations of software testing so that the effectiveness of software testing could be maximized.
Software testing is an important phase of the software development process that evaluates the functionality and quality of a software application. It involves executing a program or system with the intent of finding errors. Some key points:
- Software testing is needed to identify defects, ensure customer satisfaction, and deliver high quality products with lower maintenance costs.
- It is important for different stakeholders like developers, testers, managers, and end users to work together throughout the testing process.
- There are various types of testing like unit testing, integration testing, system testing, and different methodologies like manual and automated testing. Proper documentation is also important.
- Testing helps improve the overall quality of software but can never prove that there
Welingkar_final project_ppt_IMPORTANCE & NEED FOR TESTINGSachin Pathania
Software testing is an important step in the software development process to identify bugs and ensure quality. It is done at various stages including unit, integration, system, and acceptance testing. Automation testing helps test cases be run quickly and consistently. In conclusion, software testing is crucial to identify and remove errors, improving the performance and consistency of software products.
Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not. In simple words, testing is executing a system in order to identify any gaps, errors, or missing requirements in contrary to the actual requirements.
Software quality refers to how well a software product or service meets requirements and expectations. It is subjective as it depends on the perspective of the customer. Common aspects of quality include the software being bug-free, delivered on time and on budget, meeting requirements, and being maintainable. True software quality can only be determined by measuring how well the software serves its intended purpose from the viewpoint of all stakeholders.
1) The document discusses software testing principles, lifecycles, limitations and methods. It describes the different phases of software testing like requirements study, test case design, test execution, test closure and test process analysis.
2) It also discusses different levels of testing including unit testing, integration testing, system testing and acceptance testing. Unit testing checks individual program modules, integration testing verifies interface connections, system testing checks full application functionality, and acceptance testing gets customer approval.
3) The document provides objectives and features of good test cases and objectives of a software tester. It also outlines principles of testing like testing for failures, starting early, defining test plans, and testing for valid and invalid conditions.
This paper describes the different techniques of testing the software. This paper explicitly addresses the idea for testability and the important thing is that the testing itself-not just by saying that testability is a desirable goal, but by showing how to do it. Software testing is the process we used to measure the quality of developed software. Software Testing is not just about error-finding and their solution but also about checking the client requirements and testing that those requirements are met by the software solution. It is the most important functional phase in the Software Development Life Cycle(SDLC) as it exhibits all mistakes, flaws and errors in the developed software. Without finding these errors, technically termed as ‘bugs,’ software development is not considered to be complete. Hence, software testing becomes an important parameter for assuring quality of the software product. We discuss here about when to start and when to stop the testing of software. How errors or Bugs are formed and rectified. How software testing is done i.e. with the help of Team Work.
Software testing is an activity which is aimed for evaluating quality of a program and also for improving it, by identifying defects and problems. Software testing strives for achieving its goal (both implicit and explicit) but it has certain limitations, still testing can be done more effectively if certain established principles are to be followed. In spite of having limitations, software testing continues to dominate other verification techniques like static analysis, model checking and proofs. So it is indispensable to understand the goals, principles and limitations of software testing so that the effectiveness of software testing could be maximized.
The document discusses various aspects of software testing including definitions, principles, activities, goals, teams, and perspectives. It defines software testing as the process of analyzing a software item to detect differences between existing and required conditions, known as bugs. Some key testing principles outlined include that test cases must include expected outputs and be written for both valid and invalid inputs. Testing activities discussed are planning, design, setup, execution, analysis and reporting, and management. The goals of testing are to ensure requirements, design, code, and resource quality. The document also discusses manual versus automated testing and different testing methods, stages, cases, types, and techniques for static testing.
Software Quality Assurance involves planned actions to provide confidence that software products and processes meet requirements. It includes various testing activities at both the unit and system level. While testing cannot ensure perfect quality, it provides information to improve the software. There are several factors to consider when prioritizing which defects to address, as it is typically not feasible to fix all defects. Testers should provide severity data to help inform prioritization decisions made by other stakeholders.
This document provides an overview of software testing concepts. It discusses the meaning of software testing, the software testing lifecycle, and principles and techniques of software testing. The principles section explains 7 key principles such as that exhaustive testing is impossible and defects cluster in some modules. The techniques section describes manual testing approaches like walkthroughs and inspections, as well as automated testing types including correctness, performance, reliability, and security testing. The overall purpose is to introduce students to fundamental software testing concepts.
This document discusses software testing principles and concepts. It defines key terms like validation, verification, defects, failures, and metrics. It outlines 11 testing principles like testing being a creative task and test results needing meticulous inspection. The roles of testers are discussed in collaborating with other teams. Defect classes are defined at different stages and types of defects are provided. Quality factors, process maturity models, and defect prevention strategies are also summarized.
The document discusses software testing concepts including:
- Quality assurance ensures processes are established to produce products that meet specifications.
- Testing determines if a product meets requirements and identifies failures to meet requirements.
- A test plan is written by the lead tester and includes the testing strategy, resources, and plans. It outlines test cases and procedures to validate software meets specifications.
- Testing begins in the define system phase to ensure requirements are testable, and continues through subsequent phases including product testing, acceptance testing, and deployment. Documentation and repeatable processes are critical to quality assurance.
This document provides an overview of software development lifecycles and testing. It discusses the typical phases of the SDLC, including planning, analysis, design, implementation, and maintenance. It describes two common SDLC methodologies: the waterfall model and agile/scrum model. It also defines different types of testing like static vs dynamic, verification vs validation, functional testing, regression testing, and smoke testing. Finally, it provides details on unit, integration, system, and user acceptance testing.
This document discusses various types of software testing methods and strategies. It describes black box testing as treating software as a black box without knowledge of internal implementation. White box testing involves working with internal data structures and algorithms. Unit testing validates individual units of source code. The document outlines the aims, processes, advantages, and limitations of these different testing approaches.
Software Testing and Quality Assurance Assignment 3Gurpreet singh
Short questions :
Que 1 : Define Software Testing.
Que 2 : What is risk identification ?
Que 3 : What is SCM ?
Que 4 : Define Debugging.
Que 5 : Explain Configuration audit.
Que 6 : Differentiate between white box testing & black box testing.
Que 7 : What do you mean by metrics ?
Que 8 : What do you mean by version control ?
Que 9 : Explain Object Oriented Software Engineering.
Que 10 : What are the advantages and disadvantages of manual testing tools ?
Long Questions:
Que 1 : What do you mean by baselines ? Explain their importance.
Que 2 : What do you mean by change control ? Explain the various steps in detail.
Que 3 : Explain various types of testing in detail.
Que 4 : Differentiate between automated testing and manual testing.
Que 5 : What is web engineering ? Explain in detail its model and features.
The document provides information on software quality assurance and testing topics. It includes definitions of software quality assurance, differences between types of testing (static vs dynamic, client/server vs web applications), quality assurance activities, why testing cannot ensure quality, and more. FAQs cover topics such as prioritizing defects, establishing a QA process, and differences between QA and testing. The document is a collection of technical FAQs for software QA engineers and testers.
The document provides an overview of software testing. It defines software and describes different types, including system software, programming software, and application software. It then discusses objectives of testing like ensuring requirements are met and finding defects. Testing types include black box, white box, and interface testing. The software testing life cycle is also explained as a sequence of requirement analysis, test planning, case development, execution, and closure.
This document provides an overview of a course on Software Quality Assurance. It discusses several key points:
- The course introduces students to Software Quality Assurance principles as practiced in industry.
- Several methods are used for process and product assurance, including audits, inspections, reviews, testing, and assessments.
- Embedded quality assurance activities aim to detect and remove errors early in the development cycle to reduce costs.
- A case study of the Space Shuttle flight software project demonstrates how a rigorous quality assurance process using embedded activities achieved extremely high reliability.
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Exploratory testing is a hands-on approach where testers are involved in minimal planning and maximum test execution. The planning involves creating a test charter and objectives, while test design and execution are done in parallel without formally documenting test conditions, cases, or scripts. Some notes are taken during testing to produce a report afterwards. Use case testing identifies and executes the functional requirements of an application from start to finish using use cases. SDLC deals with software development/coding while STLC deals with validation and verification of software. A traceability matrix shows the relationship between test cases and requirements.
This document summarizes key aspects of quality management and software engineering based on a textbook. It discusses definitions of software quality, types of quality (design and conformance), the costs of quality, software quality assurance techniques like reviews and inspections, roles of a software quality assurance group, metrics for reviews, standards like ISO 9001, change management, software configuration management, and baselines.
Software Testing Interview Questions For Experiencedzynofustechnology
The document discusses various topics related to software testing interviews for experienced testers. It covers reliability testing, handling bugs, challenges of thorough testing, testing without complete requirements, differences between retesting and regression testing, challenges of software testing, types of functional testing, and more. Key points made include that it is impossible to thoroughly test a program due to subjective requirements and too many inputs/paths, the importance of regression testing when modules are updated, and differences between bugs, defects, and errors.
This document provides an overview of software testing techniques and the history of research in this area. It discusses:
1) The goals and types of software testing, including functional vs structural techniques.
2) Major milestones in the evolution of testing concepts from the 1950s to present day, shifting from debugging to prevention.
3) Key theoretical and methodological contributions to testing techniques from the 1970s onward, including work on path coverage, data flow testing, and model-based approaches.
4) How research in testing techniques has matured over time based on a technology maturation model, moving from ad hoc practices to a systematic discipline grounded in theory.
The document discusses software test automation. It defines software test automation as activities that aim to automate tasks in the software testing process using well-defined strategies. The objectives of test automation are to free engineers from manual testing, speed up testing, reduce costs and time, and improve quality. Test automation can be done at the enterprise, product, or project level. There are four levels of test automation maturity: initial, repeatable, automatic, and optimal. Essential needs for successful automation include commitment, resources, and skilled engineers. The scope of automation includes functional and performance testing. Functional testing is well-suited for automation of regression testing. Performance testing requires automation to effectively test load, stress, and other non-functional requirements
This document contains answers to 14 questions about software testing concepts. It defines software testing as evaluating a system to check if it satisfies requirements. Testing is needed to ensure quality, avoid defects, and save time and resources. Testing can stop when test cases are completed, deadlines are met, or code coverage thresholds are reached. It also distinguishes between manual and automation testing, and defines terms like quality assurance, quality control, verification, validation, test plan, test case, and test bed.
Retail store management system project report.pdfKamal Acharya
Development of large software system is extremely complex activity full of various opportunities to introduction errors. Software Engineering is the discipline that attempts to provide method to handle this complexity, enabling us to produce reliable system software with maximum productivity. It was felt that it is important and very instructive, not only to learn the principles of software engineering but also apply them to a software development project so that all aspects of development and be clearly seen on project. Software engineering is activity starts from requirements analysis and ends with testing and implementation. This project is designed to manage a Retail Store System. In This project VB 6.0 is use as front-end and Oracle use as backend.
Gas agency management system project report.pdfKamal Acharya
The project entitled "Gas Agency" is done to make the manual process easier by making it a computerized system for billing and maintaining stock. The Gas Agencies get the order request through phone calls or by personal from their customers and deliver the gas cylinders to their address based on their demand and previous delivery date. This process is made computerized and the customer's name, address and stock details are stored in a database. Based on this the billing for a customer is made simple and easier, since a customer order for gas can be accepted only after completing a certain period from the previous delivery. This can be calculated and billed easily through this. There are two types of delivery like domestic purpose use delivery and commercial purpose use delivery. The bill rate and capacity differs for both. This can be easily maintained and charged accordingly.
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Ähnlich wie Software testing for project report .pdf
The document discusses various aspects of software testing including definitions, principles, activities, goals, teams, and perspectives. It defines software testing as the process of analyzing a software item to detect differences between existing and required conditions, known as bugs. Some key testing principles outlined include that test cases must include expected outputs and be written for both valid and invalid inputs. Testing activities discussed are planning, design, setup, execution, analysis and reporting, and management. The goals of testing are to ensure requirements, design, code, and resource quality. The document also discusses manual versus automated testing and different testing methods, stages, cases, types, and techniques for static testing.
Software Quality Assurance involves planned actions to provide confidence that software products and processes meet requirements. It includes various testing activities at both the unit and system level. While testing cannot ensure perfect quality, it provides information to improve the software. There are several factors to consider when prioritizing which defects to address, as it is typically not feasible to fix all defects. Testers should provide severity data to help inform prioritization decisions made by other stakeholders.
This document provides an overview of software testing concepts. It discusses the meaning of software testing, the software testing lifecycle, and principles and techniques of software testing. The principles section explains 7 key principles such as that exhaustive testing is impossible and defects cluster in some modules. The techniques section describes manual testing approaches like walkthroughs and inspections, as well as automated testing types including correctness, performance, reliability, and security testing. The overall purpose is to introduce students to fundamental software testing concepts.
This document discusses software testing principles and concepts. It defines key terms like validation, verification, defects, failures, and metrics. It outlines 11 testing principles like testing being a creative task and test results needing meticulous inspection. The roles of testers are discussed in collaborating with other teams. Defect classes are defined at different stages and types of defects are provided. Quality factors, process maturity models, and defect prevention strategies are also summarized.
The document discusses software testing concepts including:
- Quality assurance ensures processes are established to produce products that meet specifications.
- Testing determines if a product meets requirements and identifies failures to meet requirements.
- A test plan is written by the lead tester and includes the testing strategy, resources, and plans. It outlines test cases and procedures to validate software meets specifications.
- Testing begins in the define system phase to ensure requirements are testable, and continues through subsequent phases including product testing, acceptance testing, and deployment. Documentation and repeatable processes are critical to quality assurance.
This document provides an overview of software development lifecycles and testing. It discusses the typical phases of the SDLC, including planning, analysis, design, implementation, and maintenance. It describes two common SDLC methodologies: the waterfall model and agile/scrum model. It also defines different types of testing like static vs dynamic, verification vs validation, functional testing, regression testing, and smoke testing. Finally, it provides details on unit, integration, system, and user acceptance testing.
This document discusses various types of software testing methods and strategies. It describes black box testing as treating software as a black box without knowledge of internal implementation. White box testing involves working with internal data structures and algorithms. Unit testing validates individual units of source code. The document outlines the aims, processes, advantages, and limitations of these different testing approaches.
Software Testing and Quality Assurance Assignment 3Gurpreet singh
Short questions :
Que 1 : Define Software Testing.
Que 2 : What is risk identification ?
Que 3 : What is SCM ?
Que 4 : Define Debugging.
Que 5 : Explain Configuration audit.
Que 6 : Differentiate between white box testing & black box testing.
Que 7 : What do you mean by metrics ?
Que 8 : What do you mean by version control ?
Que 9 : Explain Object Oriented Software Engineering.
Que 10 : What are the advantages and disadvantages of manual testing tools ?
Long Questions:
Que 1 : What do you mean by baselines ? Explain their importance.
Que 2 : What do you mean by change control ? Explain the various steps in detail.
Que 3 : Explain various types of testing in detail.
Que 4 : Differentiate between automated testing and manual testing.
Que 5 : What is web engineering ? Explain in detail its model and features.
The document provides information on software quality assurance and testing topics. It includes definitions of software quality assurance, differences between types of testing (static vs dynamic, client/server vs web applications), quality assurance activities, why testing cannot ensure quality, and more. FAQs cover topics such as prioritizing defects, establishing a QA process, and differences between QA and testing. The document is a collection of technical FAQs for software QA engineers and testers.
The document provides an overview of software testing. It defines software and describes different types, including system software, programming software, and application software. It then discusses objectives of testing like ensuring requirements are met and finding defects. Testing types include black box, white box, and interface testing. The software testing life cycle is also explained as a sequence of requirement analysis, test planning, case development, execution, and closure.
This document provides an overview of a course on Software Quality Assurance. It discusses several key points:
- The course introduces students to Software Quality Assurance principles as practiced in industry.
- Several methods are used for process and product assurance, including audits, inspections, reviews, testing, and assessments.
- Embedded quality assurance activities aim to detect and remove errors early in the development cycle to reduce costs.
- A case study of the Space Shuttle flight software project demonstrates how a rigorous quality assurance process using embedded activities achieved extremely high reliability.
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Exploratory testing is a hands-on approach where testers are involved in minimal planning and maximum test execution. The planning involves creating a test charter and objectives, while test design and execution are done in parallel without formally documenting test conditions, cases, or scripts. Some notes are taken during testing to produce a report afterwards. Use case testing identifies and executes the functional requirements of an application from start to finish using use cases. SDLC deals with software development/coding while STLC deals with validation and verification of software. A traceability matrix shows the relationship between test cases and requirements.
This document summarizes key aspects of quality management and software engineering based on a textbook. It discusses definitions of software quality, types of quality (design and conformance), the costs of quality, software quality assurance techniques like reviews and inspections, roles of a software quality assurance group, metrics for reviews, standards like ISO 9001, change management, software configuration management, and baselines.
Software Testing Interview Questions For Experiencedzynofustechnology
The document discusses various topics related to software testing interviews for experienced testers. It covers reliability testing, handling bugs, challenges of thorough testing, testing without complete requirements, differences between retesting and regression testing, challenges of software testing, types of functional testing, and more. Key points made include that it is impossible to thoroughly test a program due to subjective requirements and too many inputs/paths, the importance of regression testing when modules are updated, and differences between bugs, defects, and errors.
This document provides an overview of software testing techniques and the history of research in this area. It discusses:
1) The goals and types of software testing, including functional vs structural techniques.
2) Major milestones in the evolution of testing concepts from the 1950s to present day, shifting from debugging to prevention.
3) Key theoretical and methodological contributions to testing techniques from the 1970s onward, including work on path coverage, data flow testing, and model-based approaches.
4) How research in testing techniques has matured over time based on a technology maturation model, moving from ad hoc practices to a systematic discipline grounded in theory.
The document discusses software test automation. It defines software test automation as activities that aim to automate tasks in the software testing process using well-defined strategies. The objectives of test automation are to free engineers from manual testing, speed up testing, reduce costs and time, and improve quality. Test automation can be done at the enterprise, product, or project level. There are four levels of test automation maturity: initial, repeatable, automatic, and optimal. Essential needs for successful automation include commitment, resources, and skilled engineers. The scope of automation includes functional and performance testing. Functional testing is well-suited for automation of regression testing. Performance testing requires automation to effectively test load, stress, and other non-functional requirements
This document contains answers to 14 questions about software testing concepts. It defines software testing as evaluating a system to check if it satisfies requirements. Testing is needed to ensure quality, avoid defects, and save time and resources. Testing can stop when test cases are completed, deadlines are met, or code coverage thresholds are reached. It also distinguishes between manual and automation testing, and defines terms like quality assurance, quality control, verification, validation, test plan, test case, and test bed.
Ähnlich wie Software testing for project report .pdf (20)
Retail store management system project report.pdfKamal Acharya
Development of large software system is extremely complex activity full of various opportunities to introduction errors. Software Engineering is the discipline that attempts to provide method to handle this complexity, enabling us to produce reliable system software with maximum productivity. It was felt that it is important and very instructive, not only to learn the principles of software engineering but also apply them to a software development project so that all aspects of development and be clearly seen on project. Software engineering is activity starts from requirements analysis and ends with testing and implementation. This project is designed to manage a Retail Store System. In This project VB 6.0 is use as front-end and Oracle use as backend.
Gas agency management system project report.pdfKamal Acharya
The project entitled "Gas Agency" is done to make the manual process easier by making it a computerized system for billing and maintaining stock. The Gas Agencies get the order request through phone calls or by personal from their customers and deliver the gas cylinders to their address based on their demand and previous delivery date. This process is made computerized and the customer's name, address and stock details are stored in a database. Based on this the billing for a customer is made simple and easier, since a customer order for gas can be accepted only after completing a certain period from the previous delivery. This can be calculated and billed easily through this. There are two types of delivery like domestic purpose use delivery and commercial purpose use delivery. The bill rate and capacity differs for both. This can be easily maintained and charged accordingly.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
Youtube video download using python project report.pdfKamal Acharya
In order to form a clear sketch of this project, here's a brief introduction of the features and scope of YouTube Video Downloader. This project consists of three modules which are inter-linked to each other. Each of the above modules has certain specific task to perform. Tkinter is the standard GUI library for Python. Python when combined with Tkinter provides a fast and easy way to create GUI applications. Tkinter provides a powerful object- oriented interface to the Tk GUI toolkit. Tkinter provides various controls, such as buttons, labels and text boxes used in a GUI application. These controls are commonly called widgets.Pytube library makes the video downloading very easy. Create the object of the YouTube module by passing the link as the parameter. Then, get the appropriate extension and resolution of the video. You can set the name of the file as your convenience, in another case original name will be kept. After that, download the file using the download function which has one parameter which is the location where to download the file. Python, this task is very easy. Few lines of code will download the video from YouTube for you.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Library management system project report II..pdfKamal Acharya
The purpose of Library Management Pro system is to provide a medium for the public libraries to computerize their entire functioning and would contribute as a first step in digitalizing their libraries!
As till now in India, public libraries (medium and small scale) had their entire records on paper which again required maintenance and the problem of finding relevant information proved to be a herculean task. Even if the required information was found it was usually at cost of much valuable time.
Library Management Pro would not only simplify this process but also speedup the entire functioning of the library. It will also contribute towards increasing the efficiency of the library as a whole, right from the data entry to maintaining the historical records.
One major purpose is to provide user or the library members the opportunity to not only search through the books but to reserve books that are issued by other users and also request newer books.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Web chatting application project report management system.pdfKamal Acharya
One year ago we was reading an article about Teleconferencing / chatting, which as we said it is a method of using technology to bring people and ideas “together” despite of the geographic barriers. From that time and on we started wondering if we can participate in that technology and how?
The idea of creating a chat server was initiated and it has two dimensions, one to have an experience in network programming and the other is to let people conduct meetings with others in different locations. Such that it crosses time zones, can reach many people, and reduce the paper flood.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Chat application through client server management system project.pdfKamal Acharya
This project focused on creating a chatting application with communication environment. The objective of our project is to build a chatting system to facilitate the communication between two or more clients to obtain an effective channel among the clients themselves. For the application itself, this system can serve as a link to reach out for all clients. The design of the system depends on socket concept where is a software endpoint that establishes bidirectional communication between a server program and one or more client programs. Languages that will be used for the development of this system: Java Development Kit (JDK): is a development environment for building applications and components using the Java programming language.
Toll tax management system project report..pdfKamal Acharya
Toll Tax Management System is a web based application that can provide all the information related to toll plazas and the passenger checks in and pays the amount, then he/she will be provided by a receipt. With this receipt he/she can leave the toll booth without waiting for any verification call.
The information would also cover registration of staff, toll plaza collection, toll plaza collection entry for vehicles, date wise report entry, Vehicle passes and passes reports b/w dates.
Online resume builder management system project report.pdfKamal Acharya
This project aims at the Introduction to app Service Management.
This software is designed keeping in mind the user’s efficiency & ease of handling and maintenance , as and secured system over centralized data handling and providing with the features to get the complete study and control over the business.
The report depicts the basics logic used for software development long with the Activity diagrams so that logics may be apprehended without difficulty.
For detailed information, screen layouts, provided along with this report can be viewed.
Although this report is prepared with considering the results required these may be across since the project is subjected to future enhancements as per the need of organizations.
Online dating system management project report.pdfKamal Acharya
The objective of our project is to develop an application that offers online dating services where individuals or users can find and contact each other over the internet to arrange a date usually with the objective of developing a romantic, personal and sexual relationship.
Users of an online dating service would currently provide personal information, to enable them to search the service provider's database for other individuals. Members use grade other members set, such as age range, gender and location.
Online blood donation management system project.pdfKamal Acharya
Blood Donation Management System is a web database application that enables the public to make online session reservation, to view nationwide blood donation events online and at the same time provides centralized donor and blood stock database. This application is developed
by using ASP.NET technology from Visual Studio with the MySQL 5.0 as the database management system. The methodology used to develop this system as a whole is Object Oriented Analysis and Design; whilst, the database for BDMS is developed by following the steps in Database Life Cycle. The targeted users for this application are the public who is eligible to donate blood ,'system moderator, administrator from National Blood Center and the staffs who are working in the blood banks of the participating hospitals. The main objective of the development of this application is to overcome the problems that exist in the current system, which are the lack of facilities for online session reservation and online advertising on the nationwide blood donation events, and also decentralized donor and blood stock database. Besides, extra features in the system such as security protection by using password, generating reports, reminders of blood stock shortage and workflow tracking can even enhance the efficiency of the management in the blood banks. The final result of this project is the development of web database application, which is the BDMS.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Leveraging Generative AI to Drive Nonprofit InnovationTechSoup
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
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How to Make a Field Mandatory in Odoo 17Celine George
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPRAHUL
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
How to Setup Warehouse & Location in Odoo 17 InventoryCeline George
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
How to Setup Warehouse & Location in Odoo 17 Inventory
Software testing for project report .pdf
1. [1]
Methods of Software Testing
There are two basic methods of performing software testing:
1. Manual testing
2. Automated testing
Manual Software Testing
As the name would imply, manual software testing is the process of an individual or individuals
manually testing software. This can take the form of navigating user interfaces, submitting
information, or even trying to hack the software or underlying database. As one might presume,
manual software testing is labor-intensive and slow. There are some things for which manual
software testing is appropriate, including:
User interface or usability testing
Exploratory/ad hoc testing (where testers do not follow a 'script', but rather testers 'explore'
the application and use their instincts to find bugs)
Testing areas of the application which experience a lot of change.
User acceptance testing (often, this can also be automated)
The time commitment involved with manual software testing is one of its most significant
drawbacks. The time needed to fully test the system will typically range from weeks to months.
Variability of results depending on who is performing the tests can also be a problem. For these
reasons, many companies look to automation as a means of accelerating the software testing
process while minimizing the variability of results.
Automated Software Testing
Automated software testing is the process of creating test scripts that can then be run
automatically, repetitively, and through many iterations. Done properly, automated software
testing can help to minimize the variability of results, speed up the testing process, increase test
coverage (the number of different things tested), and ultimately provide greater confidence in the
quality of the software being tested.
There are, however, some things for which automated software testing is not appropriate. These
include:
End user usability testing is not typically a good candidate for automated testing.
Tests which will not be run more than a couple of times are typically not a good candidate for
automated tasting, since the payoff of in test automation comes after many test executions.
Tests for areas of the application which experience a lot of change are also not a good
candidate for automation since this can lead to substantial maintenance of test automation
scripts. Such areas of the application may be more effectively tested manually.
It is important to note that test automation is software, and just like the software you are building
for internal or external customers, it must be well-architected. A good test automation
architecture, such as a keyword-driven testing framework, will reduce the overall cost of
ownership of your test automation by minimizing maintenance expense and increasing the
number of automated tests, allowing your organization to run more tests (and achieve higher
quality) for the same investment of time and money.
2. [2]
Testing is a process used to help identify the correctness, completeness and quality of developed
computer software. With that in mind, testing can never completely establish the correctness of
computer software.
There are many approaches to software testing, but effective testing of complex products is
essentially a process of investigation, not merely a matter of creating and following rote
procedure. One definition of testing is "the process of questioning a product in order to evaluate
it", where the "questions" are things the tester tries to do with the product, and the product
answers with its behavior in reaction to the probing of the tester. Although most of the
intellectual processes of testing are nearly identical to that of review or inspection, the word
testing is connoted to mean the dynamic analysis of the product—putting the product through its
paces.
The quality of the application can and normally does vary widely from system to system but
some of the common quality attributes include reliability, stability, portability, maintainability
and usability. Refer to the ISO standard ISO 9126 for a more complete list of attributes and
criteria.
Testing helps is Verifying and Validating if the Software is working as it is intended to be
working. Thins involves using Static and Dynamic methodologies to Test the application.
Because of the fallibility of its human designers and its own abstract, complex nature, software
development must be accompanied by quality assurance activities. It is not unusual for
developers to spend 40% of the total project time on testing. For life-critical software (e.g. flight
control, reactor monitoring), testing can cost 3 to 5 times as much as all other activities
combined. The destructive nature of testing requires that the developer discard preconceived
notions of the correctness of his/her developed software.
Software Testing Fundamentals
Testing objectives include
1. Testing is a process of executing a program with the intent of finding an error.
2. A good test case is one that has a high probability of finding an as yet undiscovered error.
3. A successful test is one that uncovers an as yet undiscovered error.
Testing should systematically uncover different classes of errors in a minimum amount of time
and with a minimum amount of effort. A secondary benefit of testing is that it demonstrates that
the software appears to be working as stated in the specifications. The data collected through
testing can also provide an indication of the software's reliability and quality. But, testing cannot
show the absence of defect -- it can only show that software defects are present
3. [3]
Testing Start Process
Testing is sometimes incorrectly thought as an after-the-fact activity; performed after
programming is done for a product. Instead, testing should be performed at every development
stage of the product. Test data sets must be derived and their correctness and consistency should
be monitored throughout the development process.
If we divide the lifecycle of software development into “Requirements Analysis”, “Design”,
“Programming/Construction” and “Operation and Maintenance”, then testing should accompany
each of the above phases. If testing is isolated as a single phase late in the cycle, errors in the
problem statement or design may incur exorbitant costs. Not only must the original error be
corrected, but the entire structure built upon it must also be changed. Therefore, testing should not
be isolated as an inspection activity. Rather testing should be involved throughout the SDLC in
order to bring out a quality product.
Testing Activities in Each Phase
The following testing activities should be performed during the phases:
1. Requirements Analysis
- Determine correctness
- Generate functional test data.
2. Design
- Determine correctness and consistency
- Generate structural and functional test data.
3. Programming/Construction
- Determine correctness and consistency
- Generate structural and functional test data
- Apply test data
- Refine test data
4. Operation and Maintenance
- Retest
Requirements Analysis
The following test activities should be performed during this stage:
1.1 Invest in analysis at the beginning of the project - Having a clear, concise and formal
statement of the requirements facilitates programming, communication, error analysis and test
data generation.
4. [4]
The requirements statement should record the following information and decisions:
a. Program function - What the program must do?
b. The form, format, data types and units for input.
c. The form, format, data types and units for output.
d. How exceptions, errors and deviations are to be handled.
e. For scientific computations, the numerical method or at least the required accuracy of the
solution.
f. The hardware/software environment required or assumed (e.g. the machine,
theoperating system, and the implementation language).
Deciding the above issues is one of the activities related to testing that should be performed
during this stage.
1.2 Start developing the test set at the requirements analysis phase - Data should be generated
that can be used to determine whether the requirements have been met. To do this, the
input domain should be partitioned into classes of values that the program will treat in a similar
manner and for each class a representative element should be included in the test data.
In addition, following should also be included in the data set:
(1) boundary values
(2) any non-extreme input values that would require special handling.
The output domain should be treated similarly.
Invalid input requires the same analysis as valid input.
1.3 The correctness, consistency and completeness of the requirements should also be analyzed -
Consider whether the correct problem is being solved, check for conflicts and inconsistencies
among the requirements and consider the possibility of missing cases.
5. [5]
Design
The design document aids in programming, communication, and error analysis and test data
generation. The requirements statement and the design document should together give the
problem and the organization of the solution i.e. what the program will do and how it will be
done.
The design document should contain:
Principal data structures.
Functions, algorithms, heuristics or special techniques used for processing.
The program organization, how it will be modularized and categorized into external and
internal interfaces.
Any additional information.
Here the testing activities should consist of:
- Analysis of design to check its completeness and consistency - the total process should be
analyzed to determine that no steps or special cases have been overlooked. Internal interfaces,
I/O handling and data structures should specially be checked for inconsistencies.
- Analysis of design to check whether it satisfies the requirements - check whether both
requirements and design document contain the same form, format, units used for input and
output and also that all functions listed in the requirement document have been included in the
design document. Selected test data which is generated during the requirements analysis phase
should be manually simulated to determine whether the design will yield the expected values.
- Generation of test data based on the design - The tests generated should cover the structure as
well as the internal functions of the design like the data structures, algorithm, functions,
heuristics and general program structure etc. Standard extreme and special values should be
included and expected output should be recorded in the test data.
- Re-examination and refinement of the test data set generated at the requirements analysis
phase.
The first two steps should also be performed by some colleague and not only the
designer/developer.
6. [6]
Programming/Construction
Here the main testing points are:
- Check the code for consistency with design - the areas to check include modular structure,
module interfaces, data structures, functions, algorithms and I/O handling.
- Perform the Testing process in an organized and systematic manner with test runs dated,
annotated and saved. A plan or schedule can be used as a checklist to help
theprogrammer organize testing efforts. If errors are found and changes made to the program, all
tests involving the erroneous segment (including those which resulted in success previously)
must be rerun and recorded.
- Asks some colleague for assistance - Some independent party, other than the programmer of the
specific part of the code, should analyze the development product at each phase. The
programmer should explain the product to the party who will then question the logic and search
for errors with a checklist to guide the search. This is needed to locate errors the programmer has
overlooked.
- Use available tools - the programmer should be familiar with various compilers and interpreters
available on the system for the implementation language being used because they differ in their
error analysis and code generation capabilities.
- Apply Stress to the Program - Testing should exercise and stress the program structure, the data
structures, the internal functions and the externally visible functions or functionality. Both valid
and invalid data should be included in the test set.
- Test one at a time - Pieces of code, individual modules and small collections of modules should
be exercised separately before they are integrated into the total program, one by one. Errors are
easier to isolate when the no. of potential interactions should be kept small. Instrumentation-
insertion of some code into the program solely to measure various program characteristics – can
be useful here. A tester should perform array bound checks, check loop control variables,
determine whether key data values are within permissible ranges, trace program execution, and
count the no. of times a group of statements is executed.
- Measure testing coverage/When should testing stop? - If errors are still found every time the
program is executed, testing should continue. Because errors tend to cluster, modules appearing
particularly error-prone require special scrutiny.
The metrics used to measure testing thoroughness include statement testing (whether each
statement in the program has been executed at least once), branch testing (whether each exit from
each branch has been executed at least once) and path testing (whether all logical paths, which
may involve repeated execution of various segments, have been executed at least once).
7. [7]
Statement testing is the coverage metric most frequently used as it is relatively simple to
implement.
The amount of testing depends on the cost of an error. Critical programs or functions require
more thorough testing than the less significant functions.
Operations and Maintenance
Corrections, modifications and extensions are bound to occur even for small programs and testing
is required every time there is a change. Testing during maintenance is termed regression testing.
The test set, the test plan, and the test results for the original program should exist.
Modifications must be made to accommodate the program changes, and then all portions of the
program affected by the modifications must be re-tested. After regression testing is complete, the
program and test documentation must be updated to reflect the changes.
SDLC models
Introduction
There are various software development approaches defined and designed which are
used/employed during development process of software, these approaches are also referred as
"Software Development Process Models".
Each process model follows a particular life cycle in order to ensure success in process of
software development.
Waterfall Model
Waterfall approach was first Process Model to be introduced and followed widely in Software
Engineering to ensure success of the project. In "The Waterfall" approach, the whole process of
software development is divided into separate process phases.
The phases in Waterfall model are: Requirement Specifications phase, Software Design,
Implementation and Testing & Maintenance. All these phases are cascaded to each other so that
second phase is started as and when defined set of goals are achieved for first phase and it is
signed off, so the name "Waterfall Model". All the methods and processes undertaken in
Waterfall Model are more visible.
8. [8]
The stages of "The Waterfall Model" are:
Requirement Analysis & Definition: All possible requirements of the system to be developed
are captured in this phase. Requirements are set of functionalities and constraints that the end-
user (who will be using the system) expects from the system. The requirements are gathered
from the end-user by consultation, these requirements are analyzed for their validity and the
possibility of incorporating the requirements in the system to be development is also studied.
Finally, a Requirement Specification document is created which serves the purpose of guideline
for the next phase of the model.
System & Software Design: Before a starting for actual coding, it is highly important to
understand what we are going to create and what it should look like? The requirement
specifications from first phase are studied in this phase and system design is prepared. System
Design helps in specifying hardware and system requirements and also helps in defining overall
system architecture. The system design specifications serve as input for the next phase of the
model.
Implementation & Unit Testing: On receiving system design documents, the work is divided in
modules/units and actual coding is started. The system is first developed in small programs
called units, which are integrated in the next phase. Each unit is developed and tested for its
functionality; this is referred to as Unit Testing. Unit testing mainly verifies if the modules/units
meet their specifications.
Integration & System Testing: As specified above, the system is first divided in units which are
developed and tested for their functionalities. These units are integrated into a complete system
9. [9]
during Integration phase and tested to check if all modules/units coordinate between each other
and the system as a whole behaves as per the specifications. After successfully testing
the software, it is delivered to the customer.
Operations & Maintenance: This phase of "The Waterfall Model" is virtually never ending
phase (Very long). Generally, problems with the system developed (which are not found during
the development life cycle) come up after its practical use starts, so the issues related to the
system are solved after deployment of the system. Not all the problems come in picture directly
but they arise time to time and needs to be solved; hence this process is referred as Maintenance.
Advantages
The advantage of waterfall development is that it allows for departmentalization and managerial
control. A schedule can be set with deadlines for each stage of development and a product can
proceed through the development process like a car in a carwash, and theoretically, be delivered
on time. Development moves from concept, through design, implementation, testing, installation,
troubleshooting, and ends up at operation and maintenance. Each phase of development proceeds
in strict order, without any overlapping or iterative steps.
Disadvantages
The disadvantage of waterfall development is that it does not allow for much reflection or
revision. Once an application is in the testing stage, it is very difficult to go back and change
something that was not well-thought out in the concept stage. Alternatives to the waterfall model
include joint application development (JAD), rapid applicationdevelopment (RAD), synch and
stabilize, build and fix, and the spiral model.
Iterative Model
An iterative lifecycle model does not attempt to start with a full specification of requirements.
Instead, development begins by specifying and implementing just part of the software, which can
then be reviewed in order to identify further requirements. This process is then repeated,
producing a new version of the software for each cycle of the model. Consider an iterative
lifecycle model which consists of repeating the following four phases in sequence:
10. [10]
A Requirements phase, in which the requirements for the software are gathered and analyzed.
Iteration should eventually result in a requirements phase that produces a complete and final
specification of requirements. - A Design
phase, in which a software solution to meet the requirements is designed. This may be a new
design, or an extension of an earlier design.
- An Implementation and Test phase, when the software is coded, integrated and tested.
- A Review phase, in which the software is evaluated, the current requirements are reviewed, and
changes and additions to requirements proposed.
For each cycle of the model, a decision has to be made as to whether the software produced by
the cycle will be discarded, or kept as a starting point for the next cycle (sometimes referred to as
incremental prototyping). Eventually a point will be reached where the requirements are
complete and the software can be delivered, or it becomes impossible to enhance the software as
required, and a fresh start has to be made.
The iterative lifecycle model can be likened to producing software by successive approximation.
Drawing an analogy with mathematical methods that use successive approximation to arrive at a
final solution, the benefit of such methods depends on how rapidly they converge on a solution.
The key to successful use of an iterative software development lifecycle is rigorous validation of
requirements, and verification (including testing) of each version of the software against those
requirements within each cycle of the model. The first three phases of the example iterative
model is in fact an abbreviated form of a sequential V or waterfall lifecycle model. Each cycle of
the model produces software that requires testing at the unit level, for software integration,
for system integration and for acceptance. As the software evolves through successive cycles,
tests have to be repeated and extended to verify each version of the software.
11. [11]
V-Model
The V-model is a software development model which can be presumed to be the extension of the
waterfall model. Instead of moving down in a linear way, the process steps are bent upwards
after the coding phase, to form the typical V shape. The V-Model demonstrates the relationships
between each phase of the development life cycle and its associated phase of testing.
Verification Phases
1. Requirements analysis:
In this phase, the requirements of the proposed system are collected by analyzing the needs of
the user(s). This phase is concerned about establishing what the ideal system has to perform.
However, it does not determine how the software will be designed or built. Usually, the users are
interviewed and a document called the user requirements document is generated. The user
requirements document will typically describe the system’s functional, physical, interface,
performance, data, security requirements etc as expected by the user. It is one which the business
analysts use to communicate their understanding of the system back to the users. The users
carefully review this document as this document would serve as the guideline for the system
designers in the system design phase. The user acceptance tests are designed in this phase.
12. [12]
2. System Design:
System engineers analyze and understand the business of the proposed system by studying the
user requirements document. They figure out possibilities and techniques by which the user
requirements can be implemented. If any of the requirements are not feasible, the user is
informed of the issue. A resolution is found and the user requirement document is edited
accordingly.
The software specification document which serves as a blueprint for the development phase is
generated. This document contains the general system organization, menu structures, data
structures etc. It may also hold example business scenarios, sample windows, reports for the
better understanding. Other technical documentation like entity diagrams, data dictionary will
also be produced in this phase. The documents for system testing is prepared in this phase.
3. Architecture Design:
This phase can also be called as high-level design. The baseline in selecting the architecture is
that it should realize all which typically consists of the list of modules, brief functionality of each
module, their interface relationships, dependencies, database tables, architecture
diagrams, technology details etc. The integration testing design is carried out in this phase.
4. Module Design:
This phase can also be called as low-level design. The designed system is broken up in to smaller
units or modules and each of them is explained so that the programmer can start coding directly.
The low level design document or program specifications will contain a detailed functional logic
of the module, in pseudocode - database tables, with all elements, including their type and size -
all interface details with complete API references- all dependency issues- error message listings-
complete input and outputs for a module. The unit test design is developed in this stage.
Spiral Model
History
The spiral model was defined by Barry Boehm in his 1988 article A Spiral Model of Software
Development and Enhancement. This model was not the first model to discuss iterative
development, but it was the first model to explain why the iteration matters. As originally
envisioned, the iterations were typically 6 months to 2 years long. Each phase starts with a
design goal and ends with the client (who may be internal) reviewing the progress thus far.
Analysis and engineering efforts are applied at each phase of the project, with an eye toward the
end goal of the project.
13. [13]
The Spiral Model
The spiral model, also known as the spiral lifecycle model, is a systems development method
(SDM) used in information technology (IT). This model of development combines the features
of the prototyping model and the waterfall model. The spiral model is intended for large,
expensive, and complicated projects.
The steps in the spiral model can be generalized as follows:
1. The new system requirements are defined in as much detail as possible. This usually
involves interviewing a number of users representing all the external or internal users and
other aspects of the existing system.
2. A preliminary design is created for the new system.
3. A first prototype of the new system is constructed from the preliminary design. This is
usually a scaled-down system, and represents an approximation of the characteristics of
the final product.
4. A second prototype is evolved by a fourfold procedure: (1) evaluating the first prototype
in terms of its strengths, weaknesses, and risks; (2) defining the requirements of the
second prototype; (3) planning and designing the second prototype; (4) constructing and
testing the second prototype.
5. At the customer's option, the entire project can be aborted if the risk is deemed too great.
Risk factors might involve development cost overruns, operating-cost miscalculation, or
any other factor that could, in the customer's judgment, result in a less-than-satisfactory
final product.
6. The existing prototype is evaluated in the same manner as was the previous prototype,
and, if necessary, another prototype is developed from it according to the fourfold
procedure outlined above.
7. The preceding steps are iterated until the customer is satisfied that the refined prototype
represents the final product desired.
8. The final system is constructed, based on the refined prototype.
9. The final system is thoroughly evaluated and tested. Routine maintenance is carried out
on a continuing basis to prevent large-scale failures and to minimize downtime.
Advantages
1. Estimates (i.e. budget, schedule, etc.) become more realistic as work progresses, because
important issues are discovered earlier.
14. [14]
2. It is more able to cope with the (nearly inevitable) changes that software development
generally entails.
3. Software engineers (who can get restless with protracted design processes) can get their
hands in and start working on a project earlier.
Disadvantages
1. Highly customized limiting re-usability
2. Applied differently for each application
3. Risk of not meeting budget or schedule
4. Risk of not meeting budget or schedule
15. [15]
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