Describes UML

1. Unified Modeling
Language
Sharda University
Department Of Computer Science And Engineering
School Of Engineering and Technology
Greater Noida, U. P.

2. Presented By:
Hirra Sultan
CSE-B 2nd Year
Roll No. 120101091
System Id 2012017740
prlhirr@gmail.com
Supervisor: Mr. A. K. Sahoo

3. Introduction
 The Unified Modeling Language (UML) is a general
purpose visual modeling language that is used to
specify, visualize, construct, and document the
artifacts of a software system.
 It is intended for use with all development methods,
life cycle stages, application domains, and media.
 It captures information about the static structure and
dynamic behavior of a system.

4. Characteristics
 It is standardized and widely accepted today.
 It is conceptually rich.
 It is extensible in a standardized, controlled way.
 It’s concise.
 It’s comprehensive.
 It’s scalable.

5. Views
Different UML diagrams provide different
perspectives of the software system to be developed
and facilitate a comprehensive understanding of the
system.

6.  User’s View: This view defines the functionalities
made available by the system to its users.
 Structural view: The structural view defines the
kinds of objects (classes) important to the
understanding of the working of a system and to its
implementation. It also captures the relationships
among the classes.

7.  Behavioural view: The behavioural view captures
how objects interact with each other to realize the
system behaviour.
 Implementation view: This view captures the
important components of the system and their
dependencies.
 Environmental view: This view models how the
different components are implemented on different
pieces of hardware

8. UML Diagrams
Since UML is a collection of different modeling
types, it divides diagrams into two categories:
 Structural diagrams
 Behavioral diagrams

9. Structural UML diagrams
 Structural diagrams are used to capture the physical
organization of the things in our system i.e., how one
object relates to another.
 They emphasize the things that must be present in the
system being modeled.
 They are used extensively in documenting the
software architecture of software systems.

10. Structural Diagrams Types
 Class diagrams
 Component diagrams
 Deployment diagrams
 Composite structure diagrams
 Package diagrams
 Object diagrams

11. Example: Class Diagram

12. Behavioral UML Diagrams
 Behavior diagrams emphasize what must happen in
the system being modeled.
 They are used extensively to describe the
functionality of software systems.

13. Behavioral Diagrams Types
 Activity diagrams
 Communication diagrams
 Interaction overview diagrams
 Sequence diagrams
 State machine diagrams
 Timing diagrams
 Use case diagrams

14. Example: Use Case Diagram

15. Application Domains
 Banking and investment sectors
 Health care
 Defense
 Distributed computing
 Embedded systems
 Retail sales and supply

16. Applications Of UML
 Designing software.
 Communicating software or business processes.
 Capturing the details about a system for requirements
or analysis.
 Documenting an existing system, process or
organization.
 UML provides a vocabulary of diagrams and chart
types to describe almost any application in almost
any domain.

17. Limitations
 UML is very complex and heterogeneous.
 A large part of UML does not yet have precise
semantics.
 Problems in learning and adopting.