Excercise 12 : Modelling with UML or VMC?

Examine the Use Case in Figure 4 and explain the MVC architecture of the online bookstore needed to Lookup Books and Add to Shopping Cart.

Figure 4: Use case diagram for a customer using a shopping cart at an online bookstore.

Lookup Books

Model: Online bookstore database, which contains all of the required information about the book as well as information on the current inventory status.

Views: Book search form, Book Search Result Page

Controllers: BookSearch() -  method containing algorithm that utilizes information entered on the form to search the database for hits and returns them if any.

 

Add to shopping Cart

Models: Customer & Orders Table in the database. Customers table will hold all of the relevant information about the customer, whereas the Orders will contain Information about the orders in relation with a particular customer.

Views: Shooping cart List

Controllers: CartManager() - method containing functions to add/edit remove entries to the shopping cart.