View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Innovation Lean Startup |  Operations 8D Problem Solving |  Product Discovery Hypothesis Prioritization Canvas |  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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | When many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | 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 | High | Medium | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 1-6 Wochen | 60-90 min | 15-30 min |
Participantsdifferent | 2-8 | 4-10 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Prioritization Canvas, Hypothesis Backlog | Root cause notes, Countermeasures |
Tagsno overlap | LeanStartupValidationMVP | QualityProblem solvingRoot cause | ExperimentsPrioritizationDiscoveryHypothesis | Root causeIncidentLeanProblem solving |