The Web Store application comes with source code so you have the option of customizing the operation and business rules of the application. In fact, it's very likely that you will have to make a few changes to the store to match your business environment. Specifically you will likely need to change:

• Handling of shipping and handling pricing
  
• Calculation of Taxes
  
• Credit Card Processing
  

In addition you may need to override or change any of the business rules. To do this you should subclass the business objects and provide custom functionality.

In this section I'll show you how to perform common customizations and these customizations occur for the most part in the business objects.