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| Criterion |  UX Research User Interviews |  Decision Making Eisenhower Matrix |  Operations A3 Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | It separates true priorities from noise so it becomes clear what should be done now, scheduled, delegated, or dropped. | 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. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30–60 min per interview | 15-30 min | 45-90 min | 15-30 min |
Participantsdifferent | 1 participant per interview | 1-6 | 2-5 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Eisenhower Matrix, Action List, Delegation Notes | A3 Report, Action Plan, Root Cause Analysis | Root cause notes, Countermeasures |
Tagsno overlap | QualitativeResearchCustomerDiscovery | PrioritizationFocusTasks | LeanProblem solvingCoachingOperations | Root causeIncidentLeanProblem solving |