Revising "Blocking a user" sequence diagram

[berkaydoner]

I noticed that I did not include any database interactions in this sequence diagram. I will add database to the sequence diagram and will check any further changes.

[berkaydoner]

I have updated the blocking sequence diagram. I have added a database to store the blocking information.

I also decided to remove userProfile from the sequence diagram. When I was designing sequence diagrams last semester, I expected them to follow the accesses through the user interface. However, I now think that sequence diagrams should not be designed in such a way, they should be designed to display the flow of the program and the data. User profile is not a necessary functionality in this sequence diagram. We should not need all of the profile information of a user to block them, ID's of the blocker and the blocked user should suffice.

Here is the updated sequence diagram: