Module 18 · Lesson 98
Capstone architecture and control plan
Design source, calculation, control, output, documentation, and ownership layers before writing formulas.
The Capstone architecture and control plan mistake to catch
A diagram that omits manual inputs and external dependencies gives reviewers false confidence.
Capstone architecture and control plan: what Excel is actually doing
Capstone architecture maps source, staging, calculations, controls, outputs, and documentation. A control plan states what will be reconciled, when, by whom, and against which independent evidence.
Read this Capstone architecture and control plan example
Start with the business need: Map an auditable workbook structure, control totals, and test plan. Read each argument, reference, field, or control in the example before copying it into a larger model.
Inputs → Calculations → Controls → Dashboard → HandoverEvidence that your Capstone architecture and control plan result is trustworthy
An independent reviewer can trace every key result from the requirement to the source, formula, control, decision, and owner.
- Explain how the result supports this task: Map an auditable workbook structure, control totals, and test plan.
- Retain one known-result check and one boundary or exception check.
- Record the source, period, unit, and refresh assumption beside the output.
Key takeaway: Draw the data flow and add one preventive, one detective, and one reconciliation control.