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| Criterion |  Operations Barrier Analysis |  Product Discovery Outcome-Driven Innovation |  Operations 8D Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | Outcome-Driven Innovation clarifies customer problems, solution opportunities, and evidence. It separates jobs, desired outcomes, importance, satisfaction, and opportunity, and captures results as desired outcome statements, an opportunity landscape, and segments by underserved needs. | 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. | 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 | Medium | High | High | Low |
Timedifferent | 2-4 h | Mehrere Wochen | 1-6 Wochen | 15-30 min |
Participantsdifferent | 2-6 | 2-6 researchers plus sample | 4-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Desired outcome statements, Opportunity landscape, Segmentation by underserved needs, Innovation hypotheses | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | Root causeSafetyIncident | OutcomesInnovationResearchQuantitative | QualityProblem solvingRoot cause | Root causeIncidentLeanProblem solving |