Comment by WesolyKubeczek

> Key has been to spend a fair amount of time on initial overall design document, which is split into tangible and limited phases.

> For each phase an implementation plan is made. At the end, a summary document of what was delivered and what was discovered.

> I do check the documents, and what they're doing. I also check the tests, some more thorough.

Sounds like programming, but with extra steps.