Updated guide
The C4 model guide moved
This older URL has been replaced by our current C4 model article. The updated page has the main explanation, practical diagram guidance, and links into the wider C4 learning hub.
What the new page covers
The four levels: Context, Container, Component, and Code. Deployment diagrams are supplementary views of runtime infrastructure, with guidance on when to maintain them.
Best next step
Open the updated C4 guide if you want the main reference, or go to the C4 hub if you want the broader learning path.
Why this page exists
It helps old links keep working while search engines and readers move to the current canonical article.