In a use case diagram, is it possible to display some informations if a use case is reuse from another package ?
If I have UC1 in package 1 on diagram 1 and UC2 in package 2 in diagram 2, and if I drop UC2 on package 1 on diagram 1, it allows us to identify that UC2 comes from another package. Some other tools propose the notation << packageName>> placed on the top of the use case and (from packageName) at the bottom of the use case.
In UML we have: Use Case can be use (be a part of) more than one in differents subjects. We use name (Use Case is a NamedElement) as ID… In different words: we can use one Use Case more than one time in a differents subjects.