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| Criterion |  UX Research Diary Study |  Systems Thinking Iceberg Model |  Delivery RAID Log |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
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. | The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | 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. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 1-4 Wochen | 30-60 min | 30 min Setup, dann laufend | 2-6 h |
Participantsdifferent | 5-20 | 2-10 | 1-3 maintaining, briefing for everyone | 3-10 |
Formatdifferent | Async | Workshop + async | Async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Iceberg Worksheet, Pattern Notes, Intervention Ideas | RAID Log, Status Report Source | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | UX researchTrackingBehavior | Systems thinkingRoot causePatterns | RiskTrackingStakeholdersGovernance | RiskQualityOperationsRoot cause |