I Object

So just what is a business object? Here are some definitions:

• An intellectual entity made manifest
  
  
• A real-world object reduced to bits and bytes
  
  
• A body where flesh is data and methods are its bones
  
  
• A template for things of a particular type
  
  
• An encapsulation of functionality and data capable of having identity

If you’re in the car rental business, a business object might be a car or a contract; if you work in a bank, a customer and an account would certainly be two of your primary business objects. These business objects are full of business rules, rules that basically govern the way a business is run. The rules are usually represented in code as Case statements or nested Ifs that allow or disallow actions, modify elements, or perform methods differently depending on state.