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Selected:Gemba WalkAssumption MappingLASR (Lightweight Approach for Software Reviews)Riskiest Assumption Test
| Criterion |  Operations Gemba Walk |  Product Discovery Assumption Mapping |  Architecture LASR (Lightweight Approach for Software Reviews) |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 30-120 min | 45-60 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-2 Wochen pro Iteration |
Participantsdifferent | 2-6 | 2-8 | 1 or a small team; particularly suitable for 3–4 people | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Assumption map, Test backlog, Risk ranking | 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 | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | LeanObservationProcessOperations | AssumptionsRiskExperimentsValidation | ArchitectureQualityRiskAssessmentLean | ExperimentsValidationDiscoveryAssumptions |