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HLD / LLD Review Checklist

Questions to ask before approving a network architecture.

A good review does more than verify document completeness. It checks that decisions are justified, dependencies are visible and operations can actually support the design.

  1. 01
    Business goals and technical constraints clearly linked to the design
  2. 02
    Assumptions, exclusions and dependencies explicit
  3. 03
    Addressing, routing, redundancy and convergence documented
  4. 04
    Flows, segmentation and security policies consistent
  5. 05
    Capacity, performance and growth considered
  6. 06
    Degraded modes and failure scenarios described
  7. 07
    Observability, logging, monitoring and operations integrated
  8. 08
    Migration, coexistence and rollback considered
  9. 09
    Naming standards and conventions consistent
  10. 10
    Architecture decisions traceable and testable

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