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| Criterion |  Product Discovery Opportunity Interview |  Operations Root Cause Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | 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. | 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. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 30-60 min je Interview | 1-4 h | 2-6 h |
Participantsdifferent | 5-12 Interviews | 3-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Opportunity Themes, Customer Quotes | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | DiscoveryInterviewsOpportunityCustomer | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |
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