Book plan

This book is designed for architecture work, technical design reviews, and implementation reviews. It starts with business requirements, then moves through correctness, distributed-system behavior, security, operations, and safe change. The final chapter combines everything into one review checklist.

Evidence rule

Technical statements and recommendations in this handbook are tied to standards, official platform guidance, government engineering guidance, or peer-reviewed research. Each section lists source IDs such as [S17]. Practitioner material is clearly separated. Where the book combines several sources into a practical rule, it is a synthesis rather than a quotation. Every resource link at the end was checked twice during this validation pass.

Core rule

Do not start with a pattern or technology. Start with a requirement, failure mode, or constraint. Use the simplest design that satisfies the required behavior and quality level.

How to use the checklist

Mark each item PASS, RISK, N/A, or DECISION REQUIRED.

For every RISK, record the consequence, owner, and planned mitigation.

For every important ASSUMPTION, record the owner, evidence needed, and when it must be rechecked.

For every architectural pattern, record what concrete problem it solves.

If a requirement cannot be measured or verified, improve the requirement before declaring the design complete.

Review again when traffic, data volume, business criticality, dependencies, or deployment model changes.

Evidence: S1, S2, S24, S32, S46, S53