List the and describe four categories into which classes fall. ...

[Hungry!]

List the and describe four categories into which classes fall.
 
  What will be an ideal response?

Question 2

The standard type of navigational approach used for ecommerce is called one-click.
 
  Indicate whether the statement is true or false

[zacnyjessica]

Answer to Question 1

1. Entity classes represent real-world items, such as people and things.
2. Boundary, or interface, classes provide a means for users to work with the system.
3. Abstract classes are classes that cannot be directly instantiated.
4. Control, or active, classes are used to control the flow of activities, and they act as a coordinator when implementing classes.

Answer to Question 2

TRUE

[Hungry!]

Great answer, keep it coming

[bulacsom]

Thanks for the timely response, appreciate it