Group Work

System: Online shopping website

Use Case Number:

1

Use Case Name:

Customer Add a product

Description:

Customer select a product and add a product in a cart.

Extended Use case

Order Cancelled

Description:

Customer can cancel order within the time limit.

Use case Name

Order Cancellation

Use case ID

UCA001

Primary Actor

Customer

Secondary Actor

Administrator and shop representatives

Trigger

User tries to buy a product

Brief Description

Customer selects the order and add it to the cart. After some time he cancels the order.

Flow of tasks

User goes to his cart.

Click on the product.

Click on cancel button.

System verifies that the order cancellation service is availed according to the timing policy.

If yes, then order cancelled and user can place another order.

Precondition

The user must have logged in into the system

Post-condition

The user will be able to access and avail the services

Activity Diagram

0-274955

Sequence Diagram:

Test Plan:

Test Case ID

Test Case

Procedure

Input

Expected Result

Actual Result

1

After order confirmation, cancelled button appeared

Logged in system, Add products in cart and confirm order. Cancellation button appeared.

Add Product

Cancellation button in front of each product in a cart

As expected,

2

Cancelled button working properly

Logged in system, Add products in cart and confirm order. Cancellation button appeared. Click on the button and it shows status.

Add Product

Confirm order

Click on cancellation button

Cancellation request processed

As expected,

3

System checks the time constraint.

Logged in system, Add products in cart and confirm order. Cancellation button appeared. Click on the button

Add Product

Confirm order

Click on cancellation button

Cancellation request processed

As expected,

4

Cancellation Request Approved

Logged in system, Add products in cart and confirm order. Cancellation button appeared. Click on the button

Add Product

Confirm order

Click on cancellation button

Cancellation request is done within the time constraint.

Order cancelled

As expected,

5

Cancellation Request not Approved

Logged in system, Add products in cart and confirm order. Cancellation button appeared. Click on the button

Add Product

Confirm order

Click on cancellation button

Cancellation request is done after the time constraint.

Order Confirmed, Cancellation request not approved

As expected,

Screen Prototype:

In vision Screen:

References:

Bastos, R. M., & Ruiz, D. D. A. (2002, January). Extending UML activity diagram for workflow modeling in production systems. In Proceedings of the 35th Annual Hawaii International Conference on System Sciences (pp. 3786-3795). IEEE.

Rodríguez, A., Fernández-Medina, E., Trujillo, J., & Piattini, M. (2011). Secure business process model specification through a UML 2.0 activity diagram profile. Decision Support Systems, 51(3), 446-465.