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| Criterion |  UX Research Diary Study |  Agile Three Amigos |  Operations Failure Mode and Effects Analysis |  Agile Acceptance Criteria Workshop |
|---|---|---|---|---|
Purposedifferent | 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. | When story, test, and implementation could drift apart, it brings business perspective, engineering, and quality together early. It prevents a story from being read differently only late in the process. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | When a story needs clear checkpoints before implementation, it sharpens expectation and scope together. It sorts work by value, risk, and delivery ability. The result is captured as Acceptance Criteria and a Story Update. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 1-4 Wochen | 15-30 min | 2-6 h | 20-40 min pro Story |
Participantsdifferent | 5-20 | 3 | 3-10 | 3-6 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Clarified Story, Test Examples, Open Questions | FMEA Table, Risk Priority, Mitigation Actions | Acceptance Criteria, Story Update |
Tagsno overlap | UX researchTrackingBehavior | CollaborationBehavior-Driven DevelopmentQualityRefinement | RiskQualityOperationsRoot cause | AgileRequirementsRefinementBehavior-Driven Development |