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| Criterion |  Innovation Double Diamond |  Innovation Crazy 8s |  Product Discovery Riskiest Assumption Test |  Innovation Design Sprint |
|---|---|---|---|---|
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. | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | Wochen bis Monate | 8-15 min | 1-2 Wochen pro Iteration | 4-5 Tage |
Participantsdifferent | 3-12 | 1-10 | 2-6 | 5-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Sketch Set, Idea Shortlist, Direction Options | Prioritized Assumption List, Test Plan, Results Report | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ProcessDivergenceInnovation | BrainstormingSketchingSpeedDivergenceDesign sprint | ExperimentsValidationDiscoveryAssumptions | Design sprintPrototypeValidationInnovation |