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| Criterion |  UX Research Contextual Inquiry |  Operations ALPEN Method |  Operations 5 Whys |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | Medium | Low | Low | High |
Timedifferent | 1-3 Wochen | 10-20 min daily | 15-30 min | 2-8 h |
Participantsdifferent | 4-12 Beobachtungen | 1 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Field Notes, Workflow Insights, Pain Points | Daily Plan, Time Estimates, Review Notes | Root cause notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | UX researchObservationContext | PlanningTime managementProductivityOperations | Root causeIncidentLeanProblem solving | Problem solvingRoot causeDecisionOperations |