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What is the difference between collaboration diagram and communication diagram in UML? Are they the same diagram?
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The sequence diagram are used to represent the sequence of messages that are flowing from one object to another. The collaboration diagram are used to represent the structural organization of the system and the messages that are sent and received.
A communication diagram offers the same information as a sequence diagram, but while a sequence diagram emphasizes the time and order of events, a communication diagram emphasizes the messages exchanged between objects in an application. Sequence diagrams can fall short of offering the "big picture.”
In UML, a communication diagram shows the interactions between the objects or roles associated with lifelines and the messages that pass between lifelines. In earlier versions of UML, this diagram was called a collaboration diagram and had a different notation.
This Collaboration diagram has three elements, Object: The interaction between objects takes put in a system. Relation/Association: Association among objects is connected by connecting them. Messages: An arrow that commencing from one object to the destination object.
They are the same. This is just a name change. Collaboration diagrams was the name given to communication diagrams in previous versions of the UML standard
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From what I understand collaboration is what needs what to work. And communication is what objects will be messaging other objects. They probably in most cases end up being quite similar because in order to collaborate they need to communicate. So the two would mostly be the same but different here and there.
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