[jerf]

"Conway's law is about communication, not team boundaries."

I'm a spirit of the law sort of person, not the letter of the law. I don't care how you draw your internal organizational diagram; communication barriers are your team barriers.

It's for management to read the flow over time and keep the de jure boundaries somewhat sync'd with the de facto boundaries, but in the meantime the de facto ones are what will get written into your software.