This document discusses lean architecture and how it has evolved from the 1980s to today. It focuses on just-in-time delivery, valuable documentation, and focusing on APIs and domain-specific languages rather than extensive documentation. The goal is to deliver working software quickly and iteratively.

1. Lean Architecture

2. Form

3. Requirement

4. The 80s way

5. The Agile way

6. Just in time delivery

7. Valuable documentation

8. Focus on API, DSL

9. Thank You
Christophe Marchal
Software architect