UML stands for Unified Modeling Language. It is a language to specify, visualize, construct the artifacts of the system. UML is a graphical modelling language.
UML is a brainchild of Object Management Group(OMG). The OMG is an international non-profit software consortium.
UML 1.0 is the initial specification draft. The major versions of UML specification are:
- UML 1.x
- UML 2.x
UML Diagram Types
UML diagram can be broadly classified into three types:
- Structure Diagrams
- Behavior Diagrams
- Interaction Diagrams
Structure diagrams are Static diagrams. Static diagrams show entities and behaviors. For example, Class Diagram, Package diagram, Object Diagram, etc.
Behavior and Interaction diagrams are Dynamic diagrams. Dynamic diagrams show how entities work and interact in the system. For example, State Diagram, Sequence Diagram, Activity Diagram, etc.
UML Tools and Resources
For more information on UML: