Project Context: Web-based Gifts Purchasing System (WGPS) provides online purchasing facilities for guests who have been invited to an occasion to select gifts from a list that has been prepared by the host of the occasion.

This includes ordering, provision of purchasing facilities, provision of secure e-commerce transactional facilities, to wrapping and delivery. After a guest has entered his username and password, he could select the name of the person for whom the occasion is being held through a keyword search facility.

The system provides the user with the gifts that the host would like the guests to look at. The user can view and select one or more gifts by looking at the price, category and details.

After the user has placed the gift(s) in the shopping cart, the user confirms the order. At this point a Secure Payment Gateway connection is established and the user is required to enter credit card details.

After finally submitting the order, the companys inventory and payments, databases are updated and the user is sent an email with order confirmation and delivery details.

Tasks to do:

1. Draw the context diagram of WGPS based on the project context.

2. Draw the level 1 DFD of WGPS based on the context diagram.

3. Draw the level 2 DFD of any process from level 1 DFD that needs to be exploded.

Note: Use the symbols by Gane and Sarson as discussed in the module.