Reading
Chapter 4
Section 9

Sample Development
- service provider
  - definition: a class that provides some type of service
  - generally designed as a reusable class
- controller
  - definition: a class that manages other classes and objects in a program
  - generally not designed to be reusable
- strategies for implementing multiple classes
  - top-down development
    - develop outside-in
    - develop the top-level controller class first
    - must write temporary dummy service objects (ones that return fake values of the correct type) to test 
  - bottom-up development
    - develop inside-out
    - develop service classes first
    - requires temporary dummy main class
- design programs that are easy to understand by using several short methods as opposed to one very long one
- requiring the client to call a collection of methods in a specific order
  - very poor design
  - generally unacceptable
- stub: method that has no statements that really do anything inside the method body
- Wu convention to use // TEMP to mark temporary sections of code to make them easier to find
- test after every step of development
  - even if changes are small
  - verify nothing unexpected happened