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Software development with agile methodologies

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Software development with agile methodologies

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Agile Software Development
Not being too attached to your initial idea of what the project will look like and to be ready for change and to refactor.
Agile software engineering combines a philosophy and a set of development guidelines.
To be agile you need to put the agile values and principles into practice.

Agile Software Development
Not being too attached to your initial idea of what the project will look like and to be ready for change and to refactor.
Agile software engineering combines a philosophy and a set of development guidelines.
To be agile you need to put the agile values and principles into practice.

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Software development with agile methodologies

  1. 1. Software Development with Agile Methodologies E L M O Z A M I L E L A M I R C O N T A C T @ M Z T E C H . I N F O @ E L M O Z A M I L H T T P S : / / W W W . L I N K E D I N . C O M / I N / E L M O Z A M I L - E L A M I R - A B 5 5 3 1 5 0 1/10/2016 WWW.MZTECH.INFO JAN. 2016 1
  2. 2. About Software engineer with experience for more than 5 years. MSc holder in software engineering. MCP, MCTS, MCITP, MCSA, MCSE, MCSD, ITIL certified and more. Blogger, contributor in different online forums. Author of Cloud Software Development Life Cycle (Cloud SDLC) book. Co-author of Concurrency control in distributed database. Interested in software engineering and database. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 2
  3. 3. Outline Introduction Rapid Business Change Coping with Change Software & Software Engineering Software Engineering Methodologies Agile Development Plan-Driven Vs Value-Driven Agile Software Development in Business Database Agility Mobile Game Development Agile Developer Skills Tools What’s Next Case Study 1/10/2016 WWW.MZTECH.INFO JAN. 2016 3
  4. 4. Introduction Software Development has become one of the world’s most important technologies. Developers produce intangible ideas not a physical product so our methods all had a primary focus on managing software requirement. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 4
  5. 5. Rapid Business Change In a modern economy, market conditions change rapidly. Governmental policies and procedures BBC News interview (Jan 19th, 2012) with Yale Professor Richard Foster predicts that (by 2020, more than three-quarters of the S&P 500 will be companies that we have not heard of yet”. Nokia*. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 5
  6. 6. Coping with Change Rapid development and delivery In a fast-moving business environment, by the time the software is available for use, the original reason for its procurement may have changed. Focus is on quickly bringing product to market. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 6
  7. 7. Software Software evolve over time. Almost everyone in the industry uses software that build and support by software engineers, either use it directly or indirectly, so we all affected by it. It is important because it affects nearly every aspect of our lives and has become necessary in our commerce, our culture, and our everyday activities. Software is instructions (computer programs) that when executed provide desired features, functions, and performance; data structures that enable the programs to adequately manipulate information, and descriptive information in both hard copy and virtual forms that describes the operation and use of the programs[1] 1/10/2016 WWW.MZTECH.INFO JAN. 2016 7
  8. 8. Software Engineering Software engineering enables us to build complex systems in a timely manner with high quality and acceptable cost. Computer software continues to be the single most important technology on the world stage. Software engineering is (1) the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software; that is the application of engineering to software. (2) The study of approaches as in (1). [IEEE definition] 1/10/2016 WWW.MZTECH.INFO JAN. 2016 8
  9. 9. SE Methodologies Waterfall 1/10/2016 WWW.MZTECH.INFO JAN. 2016 9 Requirements Design Implementation Verification Deployment
  10. 10. SE Methodologies Cont… Adaptive (Agile) ◦ SCRUM. ◦ XP eXtreme Programming. ◦ FDD: Feature-Driven Development. ◦ Lean. ◦ Crystal Methods. ◦ … and manay. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 10
  11. 11. Agile Development Not being too attached to your initial idea of what the project will look like and to be ready for change and to refactor. Agile software engineering combines a philosophy and a set of development guidelines. To be agile you need to put the agile values and principles into practice. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 11
  12. 12. Manifesto for Agile Software Development Written in 2001 Consider it as guide not a rule. Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan Kent Beck Mike Beedle Arie van Bennekum Alistair Cockburn Ward Cunningham Martin Fowler James Grenning Jim Highsmith Andrew Hunt Ron Jeffries Jon Kern Brian Marick Robert C. Martin Steve Mellor Ken Schwaber Jeff Sutherland Dave Thomas 1/10/2016 WWW.MZTECH.INFO JAN. 2016 12
  13. 13. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 13
  14. 14. Principles 1. Our highest priority is to satisfy the customer through early and contiguous delivery of valuable software. 2. Welcome changing requirements, even late in development. Agile processes harness change for the customer’s competitive advantage. 3. Deliver working software frequently, from a couple of weeks to a couple of months, with a preference to the shorter timescale. 4. Business people and developers must work together daily throughout the project. 5. Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done. 6. The most efficient and effective method of conveying information to and within a development team is face-to-face conversation. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 14
  15. 15. Principles 7. Working software is the primary measure of progress. 8. Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely. 9. Continuous attention to technical excellence and good design enhances agility. 10. Simplicity – the art of maximizing the amount of work not done – is essential. 11. The best architectures, requirements, and designs emerge from self-organizing teams. 12. At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 15
  16. 16. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 16
  17. 17. Plan-Driven Vs Value-Driven Plan-Driven (Traditional) Value-Driven (Agile) Requirements won’t change Welcome changes There will be no obstacles There will be obstacles The business can wait for several months. Quick releases 1/10/2016 WWW.MZTECH.INFO JAN. 2016 17
  18. 18. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 18
  19. 19. Example 1/10/2016 WWW.MZTECH.INFO JAN. 2016 19
  20. 20. Agile Development Requirements ◦ A top level feature list is maintained. ◦ Usecases forms the basis for the development. Design ◦ Design is small iterations, but have a complete overview of system. ◦ Refactor the design Coding ◦ Clean Code. ◦ Source Control. ◦ Code Reviews. ◦ Refactoring. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 21
  21. 21. Agile Development Unit Tests ◦ Every core function has a Unit test written. ◦ Every module has a test suite that has number of test cases. ◦ The entire system put together also has a system test suite. ◦ Test suite is run daily and feedback is given to respective users. ◦ Testing is not a separate its part of development. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 22
  22. 22. Scrum Can be described as framework of feedback loops. Has five values: ◦ Focus: Focus only on a few things at a time. ◦ Courage: Feel supported and have more resources. ◦ Openness: Work together, express how we are doing. ◦ Commitment: Committed to success. ◦ Respect: Respect each other, and support each other. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 23
  23. 23. eXtreme Programming Focused on customer interaction and involvement. Has five values: ◦ Simplicity: We will do what is needed and asked for, but no more. ◦ Communication: Everyone is part of the team and we communicate face to face daily. ◦ Feedback: We will take every iteration commitment seriously by delivering working software. ◦ Courage: We will tell the truth about progress and estimates. ◦ Respect: Everyone gives and feels the respect they deserve as a valued team member. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 24
  24. 24. eXterme programming Follows twelve practices: ◦ Planning Game. ◦ Small Releases. ◦ Customer Acceptance Tests. ◦ Simple Design. ◦ Pair Programming. ◦ Test-Driven Development. ◦ Refactoring. ◦ Continuous Integration. ◦ Collective Code Ownership. ◦ Coding Standards. ◦ Metaphor. ◦ Sustainable Pace. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 25
  25. 25. Agile Software Development in Business For some types of software, such as safety-critical control system, where a complete analysis of the system is essential, a plan-driven approach is the right one. Apply agile when it is the best solution, don’t force it. People hesitate from any change. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 26
  26. 26. Advantages Agile Optimizes ROI through Incremental Value Delivery Customer satisfaction by rapid, continuous delivery. Face-to-Face communication. Close, daily cooperation between business people and developers. Even late changes in requirement are welcomed. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 27
  27. 27. disadvantages It is difficult to assess the effort required at the beginning of the software development life cycle. There is lack of emphasis on necessary designing and documentation. The project can easily get taken off track if the customer representative is not clear. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 28
  28. 28. When should you use Agile? Client be able to change the requirement. Clear picture of final product isn’t clear. When you have skilled developers who are adaptable and able to think independently. When product is intended for rapidly changing industry. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 29
  29. 29. Database Agility Model Agility: ease and speed of changing data models. Operational agility: ease and speed of changing operational aspects. Programming agility: ease and speed of application development. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 30
  30. 30. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 31
  31. 31. Mobile Game Development Mobile app growing very fast. Analyst firm Gartners in 2012 predict that by 2015, mobile app projects for smartphones and tablets will outnumber those for PCs by 4:1 ratio. As mobile technology and platform are changing very quickly we need to be more agile. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 32
  32. 32. Agile Developer Skills For agile team: ◦ Competence. ◦ Common focus. ◦ Collaboration. ◦ Decision-making ability ◦ Fuzzy problem-solving ability. ◦ Mutual trust and respect. ◦ Self-organization. You are one of the team 1/10/2016 WWW.MZTECH.INFO JAN. 2016 33
  33. 33. Tools Microsoft TFS (Scrum Template). Axosoft OnTime Scrum. LeanKit Rally Platform for Agile Lifecycle Management 1/10/2016 WWW.MZTECH.INFO JAN. 2016 34
  34. 34. Tips Learn from other’s experiences, but for each project practices may differ. Each project is a unique. Agile is not rule so make it agile. It is not necessary to do Scrum meetings everyday and in the morning. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 35
  35. 35. What’s next Traditional Methodologies. Agile Methodologies. ????????? 1/10/2016 WWW.MZTECH.INFO JAN. 2016 36
  36. 36. Case Study – Ecommerce website 1. Static content. 2. Registration. 3. View Product. 4. Add to Cart. 5. Payment Methods. 6. Return. 7. Packages. 8. Customize Product. 9. Rating. 10. Loyalty program. 11. Customer preferences. 12. Analysis. 13. Order Tracking. 14. Advertising. 1/10/2016 WWW.MZTECH.INFO JAN. 2016 37
  37. 37. Disscussion 1/10/2016 WWW.MZTECH.INFO JAN. 2016 38
  38. 38. References http://web1.muirfield-h.schools.nsw.edu.au/mahara/view/view.php?id=7619 http://www.bbc.co.uk/news/business-16611040 http://www.forbes.com/sites/microsoftdynamics/2013/03/06/innovate-to-stay-relevant/ http://agilemanifesto.org/ http://www.verivo.com/mobility-watch/are-agile-development-mobile-apps-the-perfect-match/ http://www.gartner.com/ http://sea.ucar.edu/best-practices/rup 1/10/2016 WWW.MZTECH.INFO JAN. 2016 39
  39. 39. References http://www.infoworld.com/ http://nosql.mypopescu.com/post/6125006650/nosql-databases-goals-achieving-agility https://www.simple-talk.com/sql/t-sql-programming/agile-database-development/ https://dzone.com/agile-methodology-training-tools-news http://www.halfarsedagilemanifesto.org/ http://www.extremeprogramming.org/ https://www.scrumalliance.org/ 1/10/2016 WWW.MZTECH.INFO JAN. 2016 40

Hinweis der Redaktion

  • Traditional development, agile development, cloud development
  • https://dzone.com/articles/whats-agile-individuals-and
  • Coding Example: Sorting bubble sort vs quick sort
    Quick sort run time is lower than bubble sort
    Bubble Sort O(n^2)
    Quick Sort O(n log n)
  • Axosoft OnTime Scrum helps development teams manage backlog, releases, and sprints. This HTML5-based offering features burndown charts and a management dashboard, and it tracks time spent coding features and fixing bugs. It is part of Axosoft's OnTime platform, which includes other useful collaborative tools, such as a wiki and bug tracker.

    LeanKit LeanKit uses a cloud-based whiteboard metaphor for mapping out organization processes. Cards represent work items, and status updates are provided. Teams that use LeanKit can see workload distribution and export historical data.

    Rally Platform for Agile Lifecycle Mangement This cloud-based agile lifecycle management platform scales to an unlimited number of teams and features custom pages and dashboards to automate various development processes.
  • Starting developers’ mornings with low energy is not best for productivity.

    You can make agile agile by making it fit your organization.

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