Use Case problem

Hi

I found a problem i can`t solve. How can I handle an
actor which is inside the system under dev.? The UML
rules do not allow it, I know. The actor is a timer
inside an embedded system. What can i do beside saying
the timer is outside?

THX for any idea ... Joern

.

Relevant Pages

  • Re: Use Case problem
    ... The actor is a timer ... If the drawing tool you are using doesn't let you do that, then put the icon ouside the box and put a comment on it saying that it should be inside the box but the tool won't let you do it. ... If UML has a rule that says that actors can't be in the system then ignore the rule. ...
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  • Re: Use Case problem
    ... whether the system is an actor or not). ... can consider that the use case is initiated by a triggering event ... The UML ... The actor is a timer ...
    (comp.object)
  • Re: Use Case problem
    ... The actor is a timer ... If the timer is in the hardware, it is outside of the software being designed so I would put the actor representing the timer outside. ... Things like hardware interrupts are represented as external messages to the software, just like a user's control click in a GUI. ...
    (comp.object)
  • Re: Use Cases and continuous processes?
    ... > until the next request from the actor. ... Somebody has to set the timer, ... Your colleague is also overlooking the fact that the hardware is an ... one rarely even models timers at the OOA level; ...
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  • Re: How to model a autonomous task of a system in a Use Case Diagram
    ... A few years ago, on a large systems project I worked on, we had ... whether an actor could be internal to the system. ... Cases at the time (infinitely more valuable than a Use Case Diagram, ... starting with the expiration of a system timer, ...
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