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| Criterion |  UX Research Card Sorting |  Decision Making Constraint Analysis |  Innovation Brainwriting |  Decision Making Decision Tree |
|---|---|---|---|---|
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. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | For decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 20-45 min | 30-90 min | 15-30 min | 30-90 min |
Participantsdifferent | Based on research question | 2-8 | 3-12 | 1-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Idea sheets, Expanded concepts, Prioritized list | Decision Tree, Option Map, Assumption List |
Tagsno overlap | Information architectureNavigationStructure | ConstraintsDecisionPlanningOptions | BrainstormingCollaborationInclusionIdeas | DecisionTreeOptions |