What I’m going to describe restores the symmetry by giving the domain experts the tools to collaborate with developers as first-class participants in the construction process.

Now, there are plenty of code-free simple languages that are little more than toys. The trick is finding a way to stretch them to the bounds of the whole application without losing their simplicity. That’s the role of the full-service APIs, in yellow, and the Anatomical Application Model, which I’ll be showing you next.