Write an architecture overview document

Help me write an architecture overview document.
Inputs: system; audience.

1. Explain responsibilities and relationships through reader questions.
2. separate logical structure from deployment.
3. record tradeoffs, limits and evidence to update.

Deliver: Overview document, Sources, Gaps to confirm.
Clarify critical gaps, separate facts from assumptions, and do not invent data, citations or completed actions.

My material: [fill in here]

Before you start

Provide system; audience.