Since then, I've shaped a handful of features for Basecamp 4 using pattern languages. The last couple newsletters gave a peek at that process (#3, #4).
I have enough reps now that I'm ready to share more. So earlier this week, when it was time to write up a new feature called "Introductions" for Basecamp 4, I filmed the process.
Here's a 30-minute case study video. It starts with my raw notes and shows the early shaping process. Then you can look over my shoulder to see the step-by-step process of turning the shaped work into a pattern language.