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| Criterion |  Operations ABC Analysis |  UX Research Contextual Inquiry |  Operations ALPEN Method |  Operations Gemba Walk |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | When work processes are known only from accounts and the real context stays hidden, Contextual Inquiry makes behavior at the workplace visible. Observation and follow-up questions together show how people actually work, get interrupted, and improvise. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 30-60 min | 1-3 Wochen | 10-20 min daily | 30-120 min |
Participantsdifferent | 1-5 | 4-12 Beobachtungen | 1 | 2-6 |
Formatdifferent | Async | Workshop + async | Async | Workshop |
Outputdifferent | ABC Classification, Focus Rules, Control List | Field Notes, Workflow Insights, Pain Points | Daily Plan, Time Estimates, Review Notes | Observation Notes, Improvement Ideas |
Tagsno overlap | PrioritizationOperationsPortfolio | UX researchObservationContext | PlanningTime managementProductivityOperations | LeanObservationProcessOperations |