About this site

examples.arc42.org collects complete architecture documentations of real systems, each written along the arc42 template's twelve sections.

Why a separate site

docs.arc42.org explains what belongs in each arc42 section and illustrates it with short, section-sized snippets. That is a different job from showing a whole documentation end to end: a fragment teaches you what section 5 is for, and a complete example shows you what it feels like when all twelve sections describe the same system.

The two sites overlap deliberately. A snippet may appear both here, inside its full documentation, and there, as an illustration. Neither site is generated from the other — the same arrangement arc42.org and arc42.de already use.

These are snapshots

The systems documented here are not maintained in step with their originals. An example is a photograph of an architecture at a moment, kept for what it teaches, and every overview page records who wrote it, under which licence, and where the original lives.

Colour

Each site in the arc42 family is recognized by one colour. This one is not: it is recognized by the six-segment spine under the masthead, in the shared family colours. A site collecting examples from every domain has no one colour to claim, and the arc42 hue registry had none left to give.