Actors

An actor represents an element that is external to the system. Typical actors that operate on real-time, embedded systems are buses (for example, Ethernet or MIB), sensors, motors, and switches.

Actors are a type of UML classifier similar to classes and they can participate in sequences as instances. However, actors have the following constraints imposed on them:

IBM® Rational® Rhapsody® can generate code for an actor, which can be used in simulation testing of the system you are building.


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