View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Product Discovery Assumption Mapping |  Operations 8D Problem Solving |  UX Research Surveys |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 45-60 min | 1-6 Wochen | 3-14 Tage | 1-4 h |
Participantsdifferent | 2-8 | 4-10 | 50+ | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Assumption map, Test backlog, Risk ranking | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Survey Results, Charts, Segment Insights | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | AssumptionsRiskExperimentsValidation | QualityProblem solvingRoot cause | QuantitativeResearchValidation | Root causeProblem solvingQualityIncident |