Solution Architecture

Purpose

Guide architecture decisions using ADRs, pattern selection, trade-off analysis, and cross-domain architecture design. Produce defensible, context-driven architecture recommendations that balance technical excellence with business constraints.

Architecture Decision Trees

Architecture Depth Decision Tree

What stage is the project in?
  |-- IDEA / PRE-SEED --> Lightweight architecture: 1-page system sketch, key tech choices
  |     Output: Technology choices, high-level architecture diagram
  |-- MVP / EARLY STAGE --> Standard architecture: component diagram, data model, API design
  |     Output: System context, C1-C2 diagrams, ADRs for key decisions
  |-- GROWTH / SCALE --> Detailed architecture: C4 model, NFR specs, migration plans
  |     Output: C1-C4 diagrams, fitness functions, architecture metrics
  |-- ENTERPRISE / LEGACY --> Modernization architecture: strangler fig, domain decomposition
        Output: Modernization roadmap, architecture debt inventory, migration plan