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| Criterion |  Innovation Design Thinking |  Product Discovery Solution Interview |  Facilitation 1-2-4-All |  Innovation Morphological Analysis |
|---|---|---|---|---|
Purposedifferent | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | When many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster. | 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 | High | Medium | Low | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 30-60 min je Interview | 10-20 min | 1-3 h |
Participantsdifferent | 4-10 | 5-10 Interviews | 4-100+ | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Solution Feedback, Objection List, Validation Notes | Idea List, Shared Insights, Emergent Themes | Morphological Box, Concept Combinations, Idea Shortlist |
Tagsno overlap | InnovationPrototypeResearch | ValidationInterviewsPrototype | FacilitationInclusionIdeation | IdeationInnovationCreativity |