Unified Modeling Language

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Unified Modeling Language (UML) is a standardized visual specification language for object modeling in the field of software engineering.

Contents 1 Overview 2 History 3 Structure diagrams 3.1 Class diagram 3.2 Component diagram 3.3 Composite structure diagram 3.4 Deployment diagram 3.5 Object diagram 3.6 Package diagram 4 Behavior diagrams 4.1 Activity diagrams 4.2 State diagram 4.3 Use case diagram 5 Interaction diagrams 5.1 Communication diagram 5.2 Interaction overview diagram 5.3 Sequence diagram 5.4 See also 6 See also

[edit] Overview

Unified Modeling Language is a general-purpose modeling language that includes a graphical notation used to create an abstract model of a system, referred to as a UML model. It consists of:

• Structure diagrams: emphasize what things must be in the system being modeled
• Behavior diagrams: emphasize what must happen in the system being modeled
• Interaction diagrams: a subset of behavior diagrams, emphasize the flow of control and data among the things in the system being modeled.

Unified Modeling Language is officially defined at the w:Object Management Group (OMG) by the w:UML metamodel, a w:Meta-Object Facility metamodel (MOF). Like other Meta-Object Facility-based specifications, Unified Modeling Language has allowed software developers to concentrate more on design and architecture.

A class diagram	A component diagram	A composite structure diagram	A deployment diagram
An object diagram	An activity diagram	A state diagram	A use case diagram
A communication diagram	An interaction overview diagram	A sequence diagram

[edit] History

[edit] Structure diagrams

[edit] Class diagram

A class diagram describes the structure of a system by showing the system's classes, their attributes, and the relationships between the classes. See Category:Class diagrams

[edit] Component diagram

A component diagram in the Unified Modeling Language depicts how a software system is split up into components and shows the dependencies among these components. See Category:Component diagrams

[edit] Composite structure diagram

Composite structure diagram is describes the internal structure of a class and the collaborations that this structure makes possible. See Category:Composite structure diagrams

[edit] Deployment diagram

A deployment diagram serves to model the hardware used in system implementations, the components deployed on the hardware, and the associations between those components.. See Category:Deployment diagrams

[edit] Object diagram

An object diagram shows a complete or partial view of the structure of a modeled system at a specific time. See Category:Object diagrams

[edit] Package diagram

A package diagram depicts how a system is split up into logical groupings by showing the dependencies among these groupings. See Category:Package diagrams

Package diagram.jpg

[edit] Behavior diagrams

[edit] Activity diagrams

An activity diagram In UML represents the business and operational step-by-step workflows of components in a system. An activity diagram shows the overall flow of control. See Category:UML Activity diagrams

[edit] State diagram

A state diagram in UML is a standardized notation to describe many systems, from computer programs to business processes. See Category:UML State diagrams

[edit] Use case diagram

A Use Case diagram in Unified Modeling Language shows the functionality provided by a system in terms of actors, their goals represented as use cases, and any dependencies between those use cases. See Category:Use Case diagrams

[edit] Interaction diagrams

[edit] Communication diagram

A Communication diagram models the interactions between objects or parts in terms of sequenced messages. They represent a combination of information taken from Class, Sequence, and Use Case Diagrams describing both the static structure and dynamic behavior of a system. See Category:UML Communication diagrams

[edit] Interaction overview diagram

An interaction overview diagram is a form of activity diagram in which the nodes represent interaction diagrams. See Category:Interaction overview diagrams

[edit] Sequence diagram

A sequence diagram is a diagram, that shows how processes operate one with another and in what order. See Category:Sequence diagrams

[edit] See also

• Timing diagram (added in UML 2.x)

[edit] See also

• Management diagram
• Flow chart
• Flow diagram
• Specific diagram types