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 Test Card |  Product Discovery Assumption Mapping |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 | Low | Medium | Low |
Timedifferent | 20-35 min | 45-60 min | 15-30 min |
Participantsdifferent | 1-5 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Test Card with a pre-set threshold | Assumption map, Test backlog, Risk ranking | Root cause notes, Countermeasures |
Tagsno overlap | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation | Root causeIncidentLeanProblem solving |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
