7UML INTERACTION DIAGRAMS
Interaction diagrams model the operations that occur between different objects (participants) in a system. There are three main types of interaction diagrams in UML: sequence, collaboration (communication), and timing. The majority of this chapter will focus on sequence diagrams, followed by a very brief discussion of collaboration diagrams.
7.1 Sequence Diagrams
Sequence diagrams show the interaction between participants (actors, objects) in the order in which it takes place. Whereas activity diagrams describe the particulars of one operation on an object, sequence diagrams tie activity diagrams together to show the ...
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