I have been using this for years too. I know for sure that use case diagrams are not intended to show flow sequence between use cases, some thing that folks used to flow charts tend to do. To show flow I use activity diagrams. I don't know where the restriction of the direction from actor to use case in a use case diagram came from.
susmita -----Original Message----- From: Eric D. Tarkington [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 10, 2001 12:28 PM To: Shukla, Susmita (CICG DTAG) Cc: ROSE_FORUM Subject: Re: (ROSE) Use case to actor Yes or No Susmita Shukla wrote: > Question: Can a use case "point to" an actor in a use case diagram? > > Answer: Yes. This would be a secondary actor. The actor provides > information needed to execute the use case. > > Hope this is simple enough. > > Susmita Shukla It's simple, but wrong, I think. The most important thing is that the use case diagram cannot indicate the direction of data or control flow between actors and use cases. If you want to discuss pointing, you probably need to use an interaction diagram or an activity diagram. That's why I discussed the use of actors in the sequence diagram. In that context, the question is: "Can an object point to an actor in a sequence diagram?" There, you can say "yes", because the diagram is capable of doing it. Once you are talking about the right diagram, you can introduce other nuances without confusion. -Eric ************************************************************************ * 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 * *************************************************************************
