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| Criterion |  Innovation Double Diamond |  Product Discovery Solution Interview |  Operations Kaizen Event |  Innovation Design Thinking |
|---|---|---|---|---|
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. | 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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | 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. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | Wochen bis Monate | 30-60 min je Interview | 0.5-5 Tage | 1 Tag bis mehrere Wochen |
Participantsdifferent | 3-12 | 5-10 Interviews | 4-10 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Solution Feedback, Objection List, Validation Notes | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Problem Statement, Prototype, Test Learnings |
Tagsno overlap | ProcessDivergenceInnovation | ValidationInterviewsPrototype | LeanContinuous improvementOperations | InnovationPrototypeResearch |