![Collaboration Diagrams
Conditional Paths – mutually exclusive messages
:ClassA
:ClassB
:ClassC :ClassD
msg1( )
1a: [test] msg2( )
1b: [not test] msg4( )
1b.1: msg5( )
1a.1: msg3( )
guard – if true send msg](https://image.slidesharecdn.com/cs8592ooadunit3-220307084013/85/Cs8592-ooad-unit-3-10-320.jpg)
Cs8592 ooad unit 3
- 1. CS8592 OOAD Dynamic Diagrams Dr.P.Mayil Vel Kumar HOD/CSE Karpagam Institute of Technology
- 2. UML interaction diagrams Interaction diagrams is to visualize the interactive behavior of the system. It consist two types : i. Sequence Diagram ii. Collaboration Diagram
- 3. Sequence Diagram The sequence diagram represents the flow of messages in the system and is also termed as an event diagram. It helps in envisioning several dynamic scenarios.
- 4. Notations of a Sequence Diagram Lifeline An individual participant in the sequence diagram is represented by a lifeline. It is positioned at the top of the diagram.
- 5. Messages The messages depict the interaction between the objects and are represented by arrows. They are in the sequential order on the lifeline. The core of the sequence diagram is formed by messages and lifelines. Message
- 6. Coming up: Components Sequence Diagram Example Time Increasing --> All lines should be horizontal to indicate instantaneous actions. Additionally if ActivityA happens before ActivityB, ActivityA must be above activity A Lower = Later!
- 7. Collaboration Diagram The collaboration diagram is used to show the relationship between the objects in a system. Both the sequence and the collaboration diagrams represent the same information but differently. Instead of showing the flow of messages, it depicts the architecture of the object residing in the system as it is based on object-oriented programming.
- 8. Collaboration Diagram Notations of a Collaboration Diagram Following are the components of a component diagram that are enlisted below: Objects: The representation of an object is done by an object symbol with its name and class underlined, separated by a colon.
- 9. Collaboration Diagram Links: The link is an instance of association, which associates the objects and actors. It portrays a relationship between the objects through which the messages are sent. It is represented by a solid line. The link helps an object to connect with or navigate to another object, such that the message flows are attached to links. Messages: It is a communication between objects which carries information and includes a sequence number, so that the activity may take place. It is represented by a labeled arrow, which is placed near a link. The messages are sent from the sender to the receiver, and the direction must be navigable in that particular direction. The receiver must understand the message.
- 10. Collaboration Diagrams Conditional Paths – mutually exclusive messages :ClassA :ClassB :ClassC :ClassD msg1( ) 1a: [test] msg2( ) 1b: [not test] msg4( ) 1b.1: msg5( ) 1a.1: msg3( ) guard – if true send msg
- 11. A state diagram is used to represent the condition of the system or part of the system at finite instances of time. It’s a behavioral diagram and it represents the behavior using finite state transitions.