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| Criterion |  Innovation Lean Startup |  Operations A3 Problem Solving |  Domain Modeling EventStorming |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | When a domain consists of many events, rules, and states, it creates a shared modeling space for the team. It bundles language, flows, and boundaries before domain knowledge fragments into siloed views. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 45-90 min | 2-8 h | 15-30 min |
Participantsdifferent | 2-8 | 2-5 | 5-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | A3 Report, Action Plan, Root Cause Analysis | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Root cause notes, Countermeasures |
Tagsno overlap | LeanStartupValidationMVP | LeanProblem solvingCoachingOperations | Domain-Driven DesignEventsDiscoveryWorkshop | Root causeIncidentLeanProblem solving |