Use Case Analysis and Sequence Diagram Generation

The assignment content discusses the development of a University Student Vote System, providing context diagrams, use case diagrams with scenario templates and sequence diagrams, as well as class diagrams. The use cases define the actions of voters and administrators, including login, voting, adding or updating candidate profiles, generating reports, and logging out.

Contents
2.1.2 Context Diagram.....................................................................................................................2
2.1.3 Use Case Diagram..................................................................................................................2
2.1.3.1 Scenario templates for each use case...................................................................................3
2.1.3.2 Sequence Diagrams for each use case.................................................................................4
2.1.4 Class Diagram.........................................................................................................................8

2.1.2 Context Diagram
2.1.3 Use Case Diagram

2.1.3.1 Scenario templates for each use case
Name University Student Vote System
Description This use case defines all the actions of voter and admin. This use case
describes all the users who will use this system.
Actors Voter
Preconditions Net connection should be available.
User opened the website first.
Basic Flow 1. First voter login to system
2. Voter can view all candidates
3. Voter will cast vote
4. logout
Alternate Flow 1. First register to system
2. Login to system
3. View details of all candidates
4. Cast vote for any one candidate
5. Logout from the system
Exception Flow 1. Login to system
2. Login fails
3. Again login to system
4. View details of candidates
5. Voter does not able to cast vote because of criteria
Post Condition 1. System will save all the updated details into database
2. When user logout from the system then system will successfully
logged out the user and return to user on main page.

Name University Student Vote System
Description This use case defines all the actions of voter and admin. This use case
describes all the users who will use this system.
Actors Admin
Preconditions Net connection should be available.
User opened the website first.
Basic Flow 1. First admin login to system
2. Admin can add or update or delete any candidate profile
2. Then system will save these all details into database
3. Admin can update or delete voter details
4. Then system will save these all details into database
5. Admin can generate report
6. Admin can view report
7. logout
Exception Flow Scenario 1:
1. admin login to system
2. the login details are denied by the system and system will ask to
login again
Scenario 2:
1. admin enter wrong details for candidate
2. system will ask again for this details
Post Condition 8. System will save all the updated details into database
9. When user logout from the system then system will successfully
logged out the user and return to user on main page.
2.1.3.2 Sequence Diagrams for each use case
Voter Login Sequence Diagram

Sequence diagram for Admin

2.1.4 Class Diagram