Using MVC Stereotypes with Conditional Statement

This is a sequence diagram example that uses MVC stereotype with conditional statements.

1. The customer specifies an author on the search page
2. The system validates the customer’s search criteria
3. The system search the catalog for books associated with the specified author
4. When the search is complete, the system displays the search results on the search result page
5. If the customer did not enter the name of the author, the system display an error message