PHASE 0–9
Service design comes before the feature list.
PurplePrint keeps every product decision in sequence, from the user and market problem to validation and build handoff. Each phase closes with an approved Markdown artifact.$ /purpleprint:start
▸ PHASE 0–9
Phase 0 Context why now and which market problem
Phase 1 Persona real users and current behavior
Phase 2 Problem journey · pains · competitors · value chain
Phase 3 Product core flow · MVP · revenue model
Phase 4 UX & IA principles · sitemap · journeys
Phase 5 UI design system · screen states
Phase 6 Review 39-axis recursive gate
Phase 7 GTM WTU · WTP · PMF experiments
Phase 8 Dev design stack · data · tracking · security
Phase 9 Handoff SSOT · build order · acceptance
→ A complete, build-ready product blueprint