Summary

• Title: Authenticate
• Scope: Authentication
• Level: User Goal
• Actors: Anonymous user
• Brief: Any not logged in user can authenticate to the service.

Scenarios

• Precondition: Website opened
• Main success scenario: User successfully authenticates against the server. The websites changes its state to authenticated, which enables more features (e.g. creation of snippets).
• Alternative scenario: The authentication was not successful (e.g. wrong credentials). The user is prompted to check his credentials and retry.
• Error scenario: Technical problems prevent the authentication from succeeding (e.g. connection issues). The user is informed about the issue.
• Postcondition: Website is in authenticated state, meaning that all subsequent requests will use the authentication token to identify to the server.
• Non-functional Constraints:
  • Security mechanism
  • Is precondition to use other functions