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| Criterion |  Operations Gemba Walk |  Operations Time Blocking |  Operations Kepner-Tregoe |  Operations ALPEN Method |
|---|---|---|---|---|
Purposedifferent | 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. | With a calendar that grows on request, the method makes available time explicit again. It combines appointments, focus work, and buffer into a more realistic day structure. | 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. | 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. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 30-120 min | 15-30 min Planung, laufend | 2-8 h | 10-20 min daily |
Participantsdifferent | 2-6 | 1 | 2-8 | 1 |
Formatdifferent | Workshop | Async | Workshop + async | Async |
Outputdifferent | Observation Notes, Improvement Ideas | Blocked Calendar, Capacity View, Focus Plan | Problem Analysis, Decision Analysis, Risk Plan | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | LeanObservationProcessOperations | PlanningTime managementFocus | Problem solvingRoot causeDecisionOperations | PlanningTime managementProductivityOperations |