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| Criterion |  Innovation Double Diamond |  Operations Root Cause Tree Analysis |  Innovation Brainstorming |  Innovation Morphological Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. | For a search for solutions with many degrees of freedom, a grid emerges for systematic combinations. The method separates features, variants, and exclusion criteria, so the space gets explored deliberately. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | Wochen bis Monate | 1-3 h | 30-60 min | 1-3 h |
Participantsdifferent | 3-12 | 2-8 | 4-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Cause Tree, Evidence Notes, Countermeasures | Idea pool, Theme clusters, Shortlist | Morphological Box, Concept Combinations, Idea Shortlist |
Tagsno overlap | ProcessDivergenceInnovation | Root causeTreeIncidentQuality | BrainstormingIdeationCreativityWorkshopDivergence | IdeationInnovationCreativity |