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| Criterion |  Operations Fishbone Diagram |  Innovation Design Sprint |  Operations Root Cause Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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 | Low | High | Medium | High |
Timedifferent | 30-60 min | 4-5 Tage | 1-4 h | 2-6 h |
Participantsdifferent | 2-8 | 5-8 | 3-8 | 3-10 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Prototype, Test Findings, Decision Rationale | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Root causeQualityOperations | Design sprintPrototypeValidationInnovation | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |