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| Criterion |  Operations ALPEN Method |  Operations A3 Problem Solving |  Operations Gemba Walk |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 10-20 min daily | 45-90 min | 30-120 min | 2-8 h |
Participantsdifferent | 1 | 2-5 | 2-6 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Daily Plan, Time Estimates, Review Notes | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Problem Analysis, Decision Analysis, Risk Plan |
Tags1 shared | PlanningTime managementProductivityOperations | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | Problem solvingRoot causeDecisionOperations |