Unified Modeling Language
Unified Modeling Language (UML) is a standardized visual specification language for object modeling in the field of software engineering.
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Overview
editUnified 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.
- Collage of types of diagrams
- Separate types of diagrams
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A class diagram
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A component diagram
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A composite structure diagram
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A deployment diagram
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An object diagram
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An activity diagram
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A state diagram
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A use case diagram
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A communication diagram
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An interaction overview diagram
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A sequence diagram
History
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Diagram by Guido Zockoll, 2004
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Diagram by Michael Zapf, 2006
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Diagram by Axel Scheithauer, 2008
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Update by Marcel Douwe Dekker, 2008
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Redraw by Chris828, 2009
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Update by Marcel Douwe Dekker, 2012
Structure diagrams
editClass diagram
editA 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
Component diagram
editA 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
Composite structure diagram
editComposite structure diagram is describes the internal structure of a class and the collaborations that this structure makes possible. See Category:Composite structure diagrams
Deployment diagram
editA 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
Object diagram
editAn object diagram shows a complete or partial view of the structure of a modeled system at a specific time. See Category:Object diagrams
Package diagram
editA package diagram depicts how a system is split up into logical groupings by showing the dependencies among these groupings. See Category:Package diagrams
Behavior diagrams
editActivity diagrams
editAn 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
State diagram
editA state diagram in UML is a standardized notation to describe many systems, from computer programs to business processes. See Category:UML State diagrams
Use case diagram
editA 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
Interaction diagrams
editCommunication diagram
editA 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
Interaction overview diagram
editAn interaction overview diagram is a form of activity diagram in which the nodes represent interaction diagrams. See Category:Interaction overview diagrams
Sequence diagram
editA sequence diagram is a diagram, that shows how processes operate one with another and in what order. See Category:Sequence diagrams
Timing diagram
edit- Timing diagram (added in UML 2.x)
Metamodelling
editThe Meta-Object Facility (MOF) is a standard for model-driven engineering. and an metamodel for the Unified Modeling Language.
UML Application
edit- Example
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Facebook Metamodel
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HBean architecture
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Metamodel Linkedin
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Skos metamodel
- Screenshots