Exercise $2$: "Reset Password" Web Application Use Case

Scenario:

The web app allows a user to reset their password through a series of interactions with the system.

Steps:

$1.$ The system displays a page with a "Reset Password" link.

$2.$ The user clicks the "Reset Password" link.

$3.$ The system shows a page requesting the user's ID$.$

$4.$ The user enters their user ID and clicks the "Submit" button.

$5.$ The system asks an authentication question.

$6.$ The user enters the answer and clicks the $"$OK$"$ button.

$7.$ If authenticated, the system shows a confirmation message.

$8.$ The user sees the confirmation message.

Requirements:

$-$ Create an expanded use case diagram for the "Reset Password" process, showing all system$-$user interactions.

$-$ Draw a sequence diagram to realize the flow of the "Reset Password" use case, showing the interaction between the user and the system.