Your question is Explaining a Complex System Clearly. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a project with a complex architecture that you personally helped design or evolve. Walk me through how you explained the system to different stakeholders, the key tradeoffs you made, and what happened after it went into use.