Login Module (UML Sequence Diagram)

A UML sequence diagram example for a login module. It shows how a user login is handled by an authentication system.

UML Sequence Diagram for User Login Module

The UML sequence diagram shows these lifelines:

  • User
  • Login Page
  • Authentication Module

It models the following actions:

  • Enter a user name
  • Enter a password
  • Click on the Login button
  • Send user login info
  • Validate user password
  • User login accepted
  • Redirect to the target page
  • User login rejected
  • Clear the password box and inform the user about an unaccepted user-password combination

UML Sequence Diagram Concepts

The example diagram shows an actor lifeline and two standard lifelines, call messages, two self messages, reply messages, and an alt fragment with two regions for two alternative options.

UML Sequence Diagram Example Preview

Login Module (UML Sequence Diagram)
Login Module (UML Sequence Diagram)

Download Sequence Diagram for Login Module

Login (UML Sequence Diagram)

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