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| Criterion |  Operations ALPEN Method |  UX Research Diary Study |  Operations 5 Whys |  Operations A3 Problem Solving |
|---|---|---|---|---|
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. | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | 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 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. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 10-20 min daily | 1-4 Wochen | 15-30 min | 45-90 min |
Participantsdifferent | 1 | 5-20 | 2-6 | 2-5 |
Formatdifferent | Async | Async | Workshop | Workshop + async |
Outputdifferent | Daily Plan, Time Estimates, Review Notes | Diary Entries, Longitudinal Patterns, Experience Timeline | Root cause notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | PlanningTime managementProductivityOperations | UX researchTrackingBehavior | Root causeIncidentLeanProblem solving | LeanProblem solvingCoachingOperations |