Outside in programming

• Design features from the consumer's perspective

• The service is designed based on the needs of the clients of the service

• Name things after what the service does

• Hides how the service works

• Creates strong contracts between services that decouple componets

• Work with the big picture first

• Start with the what and why first

• Much of software comes down to how you thik about the domain youre working in and how you represent it in the software you write

  • The domain model should be understandable to the domain expert