product-principleslisted

# Product Management Principles ## Core Philosophy 1. **Hypothesis Until Proven**: Every assumption is a hypothesis until validated with evidence. Treat unvalidated ideas as hypotheses, not facts 2. **Value Traceability**: From hypothesis to validation to user story to PRD to implementation to test — maintain traceability across the entire chain 3. **Feedback Accumulation**: Every outcome (including failures) remains a learning asset. Preserve invalidated hypotheses for future decisions 4. **Validated Enough**: Use cost x risk x reversibility to determine the sufficient confidence threshold 5. **Artifacts Over Notes**: Intermediate analysis (market research, competitive landscape, brainstorming) is conducted within the conversation and synthesized into the designated artifact. Each recipe defines its output locations ## Opportunity Solution Tree (OST) Hierarchy All product work follows this hierarchy: ``` Outcome ├── Product Outcome (team-controllable product goals) │ NSM connects Product Outcome ↔ Business Outcome └── Business Outcome (business results Product Outcome contributes to) Product Outcome └── Opportunity (user problems, needs, desires) └── Solution (approaches to address the opportunity = feature candidates) └── Assumption (premises underlying the solution = hypotheses) └── Experiment (methods to validate the hypothesis) ``` ### Level Definitions | Level | Granularity | Artifact | Description | |-------