Question: – Draw Sequence diagram for each use case and also draw one class diagram for all use cases or in group class diagram.

Use case 1: User Login:

Actor: Admin, Faculty, or Student

Basic Flow

1. User clicks the login link or enters the login URL into the browser.

2. The system displays login page.

3. User clicks login (Submit) button after entering the credentials and roles.

4. According to the role, the system retrieves a “User List”.

5. The system checks to see if the username exists in the “User List”.

6. If the account exists, the system compares the password.

7. If the input password is valid, based on the role provided, the system starts an authenticated session, retrieve Faculty List and displays View Faculty page (landing page).

Use Case 2: Admin Adds Student

Normal Flow:

1. Admin selects the “Students” tab in the “Admin home page”,

2. System retrieves Student list and displays “Student View” page.

3. Admin clicks “New Student” button.

4. System displays “Add student” page.

5. Admin Provides student details by selecting the institute name from dropdown box, enters student’s details

6. Admin clicks on “Save” button.

7. System validates the entered data;

8. System Save data to the database, if valid.

9. System displays successfully saved message on top of student list, which includes the new added student.

Use case 3: Team Member Makes Comments on Assessment Done by other Members:

Basic Flow:-

1. Student clicks “Make a Comment” button on the “View Peer Assessment” Page.

2. The system checks the Session to make sure the student is logged in and then displays a Write Comment page with a multi-line Text box.

3. Student writes a comment on the comment box.

4. Student clicks on the “Save” button.

5. The system validates the comment (e.g. not too long, or too short).

6. If the comment validation is ok, the system displays a confirmation page, and send the comment to Instructor for approval.

States Machine for “comments on assessment”

Comments created by evaluate

Comments Approved by instructor

Comments displayed to students

Comments disapproved by instructor

Comments revised by evaluatePlease check the attached document and answer the questions given.