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| Criterion |  Operations 8D Problem Solving |  Agile Specification by Example |  Agile Three Amigos |  Operations Root Cause Analysis |
|---|---|---|---|---|
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 business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | When story, test, and implementation could drift apart, it brings business perspective, engineering, and quality together early. It prevents a story from being read differently only late in the process. | 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. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | 1-6 Wochen | 60-90 min pro Feature | 15-30 min | 1-4 h |
Participantsdifferent | 4-10 | 3-6 | 3 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Example Table, Acceptance Tests | Clarified Story, Test Examples, Open Questions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | QualityProblem solvingRoot cause | AgileRequirementsExamplesBehavior-Driven Development | CollaborationBehavior-Driven DevelopmentQualityRefinement | Root causeProblem solvingQualityIncident |