Contour Lines and Codebase: The Ordnance Survey Model for Technical Documentation That Actually Works
The Ordnance Survey has been mapping Britain with meticulous precision for over two and a half centuries, producing documentation of the physical world that is simultaneously authoritative, layered, and perpetually subject to revision. Modern software teams producing API references, architecture diagrams, and onboarding guides would do well to study its methods. Great documentation, like great maps, is never truly finished — but it is always trustworthy.
Jun 26, 2026