This document discusses the Interaction Business Presentation (IBP) design pattern which separates an application into three main components: the model which handles only data access, the business layer which contains both data access and application logic, and the presentation layer which focuses only on user interactions and is agnostic to the underlying business logic. The interaction layer handles request/response and session management between the other two layers.

1. Design Pattern IBP
@FredBouchery

2. InteractionInteraction
BusinessBusiness PresentationPresentation

3. ControllerController
ModelModel ViewView

5. Model
Only data access ?

6. Business
Data + application logic

7. Business
User interactions blindness

9. Business
Presentation agnosticism

11. Interaction
Request, response, session, ACL,
etc.

12. Presentation
Stupid, routing blindness, etc.

14. Merci
@FredBouchery