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Does anyone use C4 model for visualizing software architecture

We are considering using C4 for our architecture diagrams. Many diagramming tools (including Structurizr which was developed specifically for it) support C4. I wonder if there are others that use it and I would like to hear your experiences.

My initial assessment is as follows:

Pros

  • Diagram as code is a great way to keep things open to change.
  • It allows for better versioning
  • It enforces semantics into the diagrams. Instead of just thinking in terms of boxes and arrows, one need to dig deeper

Cons

  • It has a relative steep learning curve (one needs to study the DSL even though the end result is just boxes and arrows)
  • The tooling is not perfect. One needs to run a docker container to be able to navigate within the diagram (solution: there is also a SaaS offering)
  • Its view of architecture is somewhat limiting. It doesn't seem to be catered for augmenting the diagrams with other forms of diagrams (flowcharts, etc.) or text.
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