Answer Happy

Change the following Use Case to Sequence diagram Use case: verify professors registration ID: UC003 Actors: Head of department Preconditions: System send the new registration to be verified Flow of events: 1. Head of department enters registration page 2. System displays all new registration to be verified 3. Head of department check each registration and verify it Postconditions: The system send approval message to the professors
Use case: login ID: UC004 Actors: Students, professors, Director of graduate studies Actors must have valid account Preconditions: Flow of events: 1. Actors enter login page 2. Actors fill all required fields 3. Actors submit login form 4. System validates and check the user information Postconditions: System redirect the actor to the homepage Exception flow : validation failed: 1. The system displays the error message on the from 2. step from 3-4, will be repeated again
Use case: choose communication type ID: UC005 Actors: Students, professors Preconditions: Actors are successfully logged on to system, and the actors must be on appointment page Flow of events: 1. System display communication types for the actors to choose (synchronous and asynchronous ) 2. Actors choose communicate types that they prefer 3. Actors submit the chosen type Postconditions: System set the chosen communication type