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| Criterion |  Operations Root Cause Analysis |  Product Discovery Learning Card |  Operations 5 Whys |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-4 h | 25-40 min | 15-30 min | 45-75 min |
Participantsdifferent | 3-8 | 1-5 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Learning Card with evidence and next action | Root cause notes, Countermeasures | Test Matrix, Test Plan |
Tagsno overlap | Root causeProblem solvingQualityIncident | ExperimentsValidationDiscoveryLearning | Root causeIncidentLeanProblem solving | ExperimentsValidationDiscoveryOptions |