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| Criterion |  Innovation Contradiction Analysis |  Engineering Failure Scenario Analysis |  Operations 8D Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When a system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | 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 | Medium | High | Low |
Timedifferent | 60-120 min | 1-3 h | 1-6 Wochen | 15-30 min |
Participantsdifferent | 2-8 | 3-8 | 4-10 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | ContradictionsInnovationProblem solving | FailureResilienceRisk | QualityProblem solvingRoot cause | Root causeIncidentLeanProblem solving |