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| Criterion |  Operations A3 Problem Solving |  Agile Ideal Days |  Operations 8D Problem Solving |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | 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. | When effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. | 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 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. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 45-90 min | 15-60 min | 1-6 Wochen | 30-60 min |
Participantsdifferent | 2-5 | 2-9 | 4-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Ideal Day Estimates, Assumption Notes, Capacity Caveats | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LeanProblem solvingCoachingOperations | EstimationEffortAgile | QualityProblem solvingRoot cause | Root causeQualityOperations |