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| Criterion |  Operations 8D Problem Solving |  Operations Standard Work Analysis |  Innovation Contradiction Analysis |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 1-6 Wochen | 1-3 h | 60-120 min | 45-90 min |
Participantsdifferent | 4-10 | 2-6 | 2-8 | 2-5 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | QualityProblem solvingRoot cause | LeanProcessQuality | ContradictionsInnovationProblem solving | LeanProblem solvingCoachingOperations |