Your question is Architecture Modeling Tooling Approach. 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).
You are starting a new architecture initiative and need to document the current state, target state, and key design decisions in a way that engineering, security, and operations can all use.
What tools do you use for system modeling and architecture documentation, and how do you decide which ones are appropriate for different audiences and phases of delivery?