7-8 minutes<\/p>\n
UML communication diagrams, like the sequence diagrams – a kind of interaction diagram, shows how objects interact. A communication diagram is an extension of object diagram that shows the objects along with the messages that travel from one to another. In addition to the associations among objects, communication diagram shows the messages the objects send each other.<\/p>\n
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In the example of the notation for a communication diagram, objects (actors in use cases)are represented by rectangles. In the example (generic communication diagram):<\/p>\n
The communication diagram and the sequence diagram are similar. They’re semantically equivalent, that is, the present the same information, and you can turn a communication to a sequence diagram and vice versa. The main distinction between them is that the communication diagram arranged elements according to space, the sequence diagram is according to time.<\/p>\n
Of the two types of interaction diagrams, sequence diagrams seem to be used far more than communication diagrams. So, why would you use communication diagrams? First of all, they are very useful for visualizing the relationship between objects collaborating toper form a particular task. This is difficult to determine from a sequence diagram. In addition, communication diagrams can also help you determine the accuracy of your static model (i.e., class diagrams).<\/p>\n","protected":false},"excerpt":{"rendered":"