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Selected:PersonasARID (Active Reviews for Intermediate Designs)Root Cause AnalysisRoot Cause Tree Analysis
| Criterion |  UX Research Personas |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Root Cause Analysis |  Operations Root Cause Tree Analysis |
|---|---|---|---|---|
Purposedifferent | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-3 Tage | 2–4 h review as a planning range; preparation and evaluation additional | 1-4 h | 1-3 h |
Participantsdifferent | Internes Team | Designers, developers as users, and facilitation | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Persona Profiles, Needs Summary, Scenario Notes | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | ResearchCustomerSynthesis | ArchitectureEngineeringFeedbackValidationTasks | Root causeProblem solvingQualityIncident | Root causeTreeIncidentQuality |