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| Criterion |  Operations Root Cause Analysis |  Agile Bucket System |  Agile Affinity Estimation |
|---|---|---|---|
Purposedifferent | 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. | When a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-4 h | 30-90 min | 30-90 min |
Participantsdifferent | 3-8 | 3-12 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Bucketed Backlog, Relative Estimates, Split Candidates | Affinity Size Map, Grouped Estimates, Unclear Items |
Tagsno overlap | Root causeProblem solvingQualityIncident | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing |
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