Communication paths

In UML modeling, a communication path is a type of association between nodes in a deployment diagram that shows how the nodes exchange messages and signals.

When you specify communication paths, you can define the number of nodes that can be connected at each end. You can also use labels to identify the type of protocol or network that is used in the communication.

As the following figure illustrates, a communication path is displayed as a solid line that connects nodes. The multiplicity value and role are also displayed at each end of the communication path.

Two cubes, labeled Node1 and Node2, are connected by a solid line, labeled http/internet. At the point where the line connects to Node1, -node1 is displayed below the line and the multiplicity value of 1 is displayed above it. At the point where the line connects to Node2, -node 2 is displayed below the line and the multiplicity value of 1 is displayed above it.

Related tasks
Adding relationships to diagrams

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