I have to specify a use case 'Register Company (CRUD)', which is used by 3 actors:
The question is: How to specify the different actions of the actors in the same use case?
It would be best to create a basic use case that is included by the other use cases and create three use cases for each of the actors to be able to do their part (be different identify or display a different signup screen). It would be easier to work with cases later.
If you really want to do everything in a use case, it is possible with the alternate stream, but there the actor is unique. The actor would be something like "User" and within the use case you fill in as if it were the happy path (which the standard actor?) And asking the user to identify himself as trustee, clerk or employee. Then, in alternate flows, you show the sequences in case of user responses identifying themselves as non-standard people.
