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| Criterion |  Operations Process Mapping |  Operations A3 Problem Solving |  Agile Affinity Estimation |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | 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 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. | 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 | Medium | Low |
Timedifferent | 1-3 h | 45-90 min | 30-90 min | 15-30 min |
Participantsdifferent | 3-10 | 2-5 | 3-12 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Process Map, Handoff List, Improvement Backlog | A3 Report, Action Plan, Root Cause Analysis | Affinity Size Map, Grouped Estimates, Unclear Items | Root cause notes, Countermeasures |
Tagsno overlap | ProcessOperationsImprovement | LeanProblem solvingCoachingOperations | EstimationBacklogRelative sizing | Root causeIncidentLeanProblem solving |