Unified Modeling Language (UML)

The Unified Modeling Language (UML) is a graphical model used to create specifications for various components of a software system. The parts of UML include: 
  • Class Diagram: similar to E – R diagram 
  • Use case Diagram: shows the interaction between users and the system, and the steps of tasks that user performs.
  •  Activity Diagram: depicts the flow of tasks between various components of the system. 
  • Implementation Diagram: shows the system components (both, software level and hardware level) and their interconnections

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