Chapter 5 Building Dynamic Diagrams
You can create the following objects in a collaboration diagram:
| Object | Tool | Symbol | Description |
|---|---|---|---|
| Actor | 
|
|
An external person, process or something interacting with a system, sub-system or class. See the "Actors" section in the "Building Use Case Diagrams" chapter. |
| Object | 
|
|
Instance of a class. See the "Objects" section in the "Building Structural Diagrams" chapter. |
| Instance link | 
|
|
Communication link between two objects. See the "Instance Links" section in the "Building Structural Diagrams" chapter. |
| Message | 
|
|
Interaction that conveys information with the expectation that action will ensue. It creates an instance link by default when no one exists. See "Messages". |
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