–Drag and drop the Alert System actor into the context diagram (Figure
–Repeat these steps for the Local Forecaster and Online User actors.
Figure 6-35 Drag an actor into the context diagram
Create associations between the actors and the Weather Tracking System:
–In the context diagram hover over the Online User actor.
–Grab the handle and drag it on top of the Weather Tracking System class.
–Drop it on the class and select Create Bidirectional Association from the
–Perform the steps also for the Alert System and the Local Forecaster actors (Figure
Figure 6-36 Context diagram: Weather Tracking System with actors
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