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Fitness Functions That Keep the Architecture Honest

This generated surface maps a learner-facing curriculum unit to its canonical source routes.

Curriculum surface​

  • Open learner-facing unit
  • Curriculum path: content/curriculum/production/semester-10-capstone/module-01-domain-analysis-architecture-design/concepts/cluster-03-architecture-decision/09-fitness-functions-that-keep-architecture-honest-primary.md
  • App: production
  • Semester: semester-10-capstone
  • Module: module-01-domain-analysis-architecture-design
  • Unit kind: concept
  • Curation level: module_curated

Learning objectives​

  • Explain Fitness Functions That Keep the Architecture Honest as the work of turning a real problem domain into explicit boundaries, constraints, and architectural decisions instead of vague project ambition.
  • Use Fitness Functions That Keep the Architecture Honest to make the capstone direction defensible: what problem is being solved, what scope is excluded, and which tradeoffs matter most.
  • Use api-design-patterns, clean-architecture, fundamentals-of-software-architecture, learning-domain-driven-design to connect the learner-facing explanation to domain analysis, architecture sketches, requirements framing, and decision rationale.

Prerequisites​

  • Comfort with architecture, system design, and making tradeoffs explicit before implementation begins.

Source books​

  • api-design-patterns
  • clean-architecture
  • fundamentals-of-software-architecture
  • learning-domain-driven-design

Source routes​

Api Design Patterns​

Clean Architecture​

Fundamentals Of Software Architecture​

Learning Domain Driven Design​

Supporting curriculum routes​

External enrichment​

  • C4 Model (official_docs_companion) - Useful when the learner needs a concrete, lightweight way to communicate capstone architecture and system boundaries clearly.
  • arc42 Documentation (optional_deep_dive) - Provides a fuller architecture-documentation template for capstone teams that need more rigor around decisions and structure.

AI companion modes​

  • Explain simply
  • Socratic tutor
  • Challenge my understanding
  • Diagnose my confusion
  • Connect forward / backward

Source-of-truth note​

This teaching unit is learner-facing guidance assembled from canonical book routes plus prior curriculum surfaces. Use the listed source books as the primary conceptual spine for Fitness Functions That Keep the Architecture Honest, and use the supporting curriculum routes to reconnect earlier learner-facing explanations when needed.