Part III — The Craft of Design Chapter 17

Diagrams That Communicate, Not Impress

Architectural diagrams fail when they optimize for completeness over clarity. This chapter covers the C4 model, context diagrams, sequence diagrams, and the discipline of drawing what your audience needs to understand, not everything you know.

What this chapter covers
  • The C4 model: context, container, component, code
  • When to use each C4 diagram level
  • Sequence diagrams for behaviour documentation
  • Deployment diagrams for infrastructure communication
  • Diagramming tools: draw.io, Mermaid, Structurizr
  • Tailoring diagrams to different audiences
  • Common diagramming mistakes and how to avoid them

Read Chapter 17 in Full

Available on LeanPub (PDF, ePub, MOBI) and Amazon (Kindle and Paperback).