View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations Failure Mode and Effects Analysis |  Product Discovery Smoke Test |  Operations 8D Problem Solving |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Low | High | Medium |
Timedifferent | 2-6 h | 1-5 Tage | 1-6 Wochen | 45-60 min |
Participantsdifferent | 3-10 | Nutzertraffic | 4-10 | 2-8 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Interest Metrics, Conversion Signal, Learning Note | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskQualityOperationsRoot cause | ValidationExperimentsDemandGrowth | QualityProblem solvingRoot cause | AssumptionsRiskExperimentsValidation |