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| Criterion |  Operations Getting Things Done |  UX Research User Interviews |  Operations ALPEN Method |  Operations Ivy Lee Method |
|---|---|---|---|---|
Purposedifferent | With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 h Setup, laufend | 30–60 min per interview | 10-20 min daily | 5-10 min daily |
Participantsdifferent | 1 | 1 participant per interview | 1 | 1 |
Formatdifferent | Async | Workshop + async | Async | Async |
Outputdifferent | Action Lists, Project List, Review Routine | Interview Notes, Themes, Insight Summary | Daily Plan, Time Estimates, Review Notes | Daily Priority List, Completion Notes |
Tagsno overlap | ProductivityPlanningTasksExecution | QualitativeResearchCustomerDiscovery | PlanningTime managementProductivityOperations | PrioritizationProductivityExecution |