A brief summary of UML & Rational Rose –Activity Diagram & Statechart Diagram & other diagrams , Part V

7. Activity Diagram

The Activity Diagram is the closest to a flow chart, and the closest to a business process diagram.

 

7.1 A description of activity diagram elements

• ­Initial state is where the diagram begins.
• ­Control flow shows a transfer of control from one activity to another.
• ­A state is one of the possible conditions in which an object may exist.
• ­An activity is some behaviour that an object carries out while it is in a particular state.
• ­Swin lane shows all of the activities carried out by a particular person or team arranged into a column.
• ­Object in state shows an object that is produced or consumed in the course of an activity, with the production or consumption being represented by the dashed line.
• ­Entry actions shows what must happen when the activity begins.
• ­Stop state is where the diagram ends.

 

8. Statechart Diagram

­Statechart diagrams provide a way to model the various states in which an object can exist. Statechart diagrams focus on the state transition from one state to another.

A sample statechart diagram about purchase order object lists as follows.

9. Component Diagram

­A Component diagram displays the components in the system and the dependencies between them.

­The only type of relationship that exist between components is a component dependency.

­For a .NET application the components will be executables(.EXE) and libraries(.DLL) corresponding to the solution structure within Visual Studio .NET.

10. Deployment Diagram

­A Deployment diagram shows all of the physical nodes on the network, the connections between them and the processes that will run on each other.


OK. That's all.