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| Criterion |  UX Research User Interviews |  Operations A3 Problem Solving |  Architecture Architecture Communication Canvas |  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. | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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 | Medium | Medium | Low |
Timedifferent | 30–60 min per interview | 45-90 min | 60-120 min | 15-30 min |
Participantsdifferent | 1 participant per interview | 2-5 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | A3 Report, Action Plan, Root Cause Analysis | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Root cause notes, Countermeasures |
Tagsno overlap | QualitativeResearchCustomerDiscovery | LeanProblem solvingCoachingOperations | ArchitectureCommunicationStakeholdersCanvas | Root causeIncidentLeanProblem solving |