(responding to hCho)
>To be a actor, I thought, the actor must be a starter or invoker > of use case. Am I right or wrong? Wrong. For each use case there must be one and only one invoker, and the invoker is an Actor. However there may be any number of other Actors that react to (or passively receive information from) the Use Case. So, 1 proactive and 0..* reactive Actors per Use Case. In certain cases, e.g. where the use case represents a scheduled operation, it is necessary to invent an Actor, e.g. "Time", to invoke the use case. HTH, Paul Oldfield ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ www.aptprocess.com any opinions expressed herein are not necessarily those of Mentors of Cally or the Appropriate Process Movement ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ************************************************************************ * Rose Forum is a public venue for ideas and discussions. * For technical support, visit http://www.rational.com/support * * Post or Reply to: [EMAIL PROTECTED] * 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 *************************************************************************
