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Selected:Opportunity Solution TreeArchitecture Decision RecordLASR (Lightweight Approach for Software Reviews)Assumption Surfacing
| Criterion |  Product Discovery Opportunity Solution Tree |  Architecture Architecture Decision Record |  Architecture LASR (Lightweight Approach for Software Reviews) |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-2 h Setup, laufend | 15-45 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 45-90 min |
Participantsdifferent | 2-6 | 1-3 | 1 or a small team; particularly suitable for 3–4 people | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Opportunity Solution Tree, Experiment Backlog, Learning Log | ADR File, Decision Log, Rationale | Lean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | DiscoveryOutcomesExperimentsOpportunity | ArchitectureRationaleDocumentationGovernance | ArchitectureQualityRiskAssessmentLean | AssumptionsRiskDecisionDiscovery |