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| Criterion |  UX Research Card Sorting |  Innovation Double Diamond |  Operations Standard Work Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | 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 | 20-45 min | Wochen bis Monate | 1-3 h | 15-30 min |
Participantsdifferent | Based on research question | 3-12 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Content groups, Label set, IA hypotheses | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Root cause notes, Countermeasures |
Tagsno overlap | Information architectureNavigationStructure | ProcessDivergenceInnovation | LeanProcessQuality | Root causeIncidentLeanProblem solving |