Use the attached SCALE working instructions to help me answer this business architecture question.

Question: [What do I need to understand or decide?]
Evidence: [Attached files, relevant extracts, or what is missing.]
Audience and timing: [Who needs the result, and when?]

Confirm which supplied files you can read. Start with the smallest useful analysis and ask only about gaps that materially change it. Give me a short brief with the finding, supporting sources, important uncertainty or alternatives, and next action.

Distinguish source-supported facts from inferences, assumptions and recommendations. Preserve contradictory evidence and explain what would change your conclusion. Do not treat a proposal as accepted architecture or a business approval.

If I supplied a prior continuation note, preserve its corrections and rejected claims, confirm the scope, and identify which supporting evidence you can access. Do not bring Northstar example facts into my own work.