Wardley Maps are a way of expressing business, market, or any other system through sketching. The Map is a sketch that offers situational awareness on a certain topic. As a sketch, the obvious way to draw a map is with paper and pen. While it is an excellent starting point, a paper representation of a map has a problem: it is static. What I mean by this is that adjusting the placement of some components in the design phase can be tedious (even with a good rubber pencil).

Thanks to the CUE language, this article will expose a way to draw diagrams as data. It introduces a CUE module holding the definitions for C4 components declarations.