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| Criterion |  UX Research Diary Study |  Operations Waste Analysis |  Operations DMAIC |  Delivery Value Stream Mapping |
|---|---|---|---|---|
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. | For a process that keeps people busy but creates little value, the method exposes waste. It directs attention to unnecessary movement, waiting times, rework, and overdelivery. | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | When delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 1-4 Wochen | 45-120 min | 2-12 Wochen | 1-3 h |
Participantsdifferent | 5-20 | 2-8 | 3-10 | 4-10 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Waste Map, Prioritized Waste, Improvement Backlog | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Current-state map, Future-state map, Bottleneck list |
Tagsno overlap | UX researchTrackingBehavior | WasteLeanProcess improvement | Continuous improvementQualityProcess improvement | LeanFlowWasteDelivery |