The document discusses object-oriented thinking and design. It contrasts traditional structured design approaches with object-oriented approaches, noting that object-oriented design requires different ways of thinking about decomposition and produces different software architectures. It also discusses various object-oriented concepts like encapsulation, self-describing objects, and self-evaluating rules.

1. Object Thinking

14. Object Depictions Object (Class-Responsibility-Collaboration) Customer ID self describe self indicate desires make decisions confirm information

18. Demo Self-Describing Objects & Self-Evaluating Rules