Hi, lets put it this way:
The primary actor is the one who initiates an interaction with system to accomplish some goal, i.e. to execute some use case. System is on the other hand supposed (responsible) to deliver its responsibility for the goal. But, sometimes system needs some actors to provide the service in order to deliver its responsibility. These actors are usually called secondary actors, or supporting actors (this can be printer, web service, human who has to do some research to provide the service) Both primary and supporting actors interact with use cases. This interaction can be accordingly to UML modeled by actor-use case association (this association can be directed to emphasize flow of communication). To your use case: May be it would be worth to consider what is the goal of the use case, and if you still believe this is a candidate for use case, try to inspect it against principles outlined above. Anyway, try to concentrate on use case content rather than vaste time with quetions like, whether there should be an arrow to actor in diagram or not. Just keep pictures high-level enough to be clearly readable, and so still adding value to your requirements, rather than confusing. I hope this helps, Vladimir. "Jo�o Paulo Marto Pereira" wrote: > Hi; > > Is it fair to assume that a use-case can point towards an actor, if that > actor is a human being that has to decide something along the process? For > instance, a case when an employee asks the system to ask the mannager to buy > something. I was thinking about using an arrow from employee to "ask for > soap", an from there to mannager. > > Thanks... > > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp > > ************************************************************************ > * Rose Forum is a public venue for ideas and discussions. > * For technical support, visit http://www.rational.com/support > * > * Admin.Subscription Requests: [EMAIL PROTECTED] > * Archive of messages: http://www.rational.com/support/usergroups/rose/rose_forum.jsp > * Other Requests: [EMAIL PROTECTED] > * > * To unsubscribe from the list, please send email > * > * To: [EMAIL PROTECTED] > * Subject:<BLANK> > * Body: unsubscribe rose_forum > * > ************************************************************************* ************************************************************************ * Rose Forum is a public venue for ideas and discussions. * For technical support, visit http://www.rational.com/support * * Admin.Subscription Requests: [EMAIL PROTECTED] * Archive of messages: http://www.rational.com/support/usergroups/rose/rose_forum.jsp * Other Requests: [EMAIL PROTECTED] * * To unsubscribe from the list, please send email * * To: [EMAIL PROTECTED] * Subject:<BLANK> * Body: unsubscribe rose_forum * *************************************************************************
