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| Criterion |  Innovation Design Thinking |  Product Discovery Solution Interview |  Operations Eat the Frog |  Operations Ivy Lee Method |
|---|---|---|---|---|
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. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | 1 Tag bis mehrere Wochen | 30-60 min je Interview | 15-90 min daily | 5-10 min daily |
Participantsdifferent | 4-10 | 5-10 Interviews | 1 | 1 |
Formatdifferent | Workshop | Workshop + async | Async | Async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Solution Feedback, Objection List, Validation Notes | Priority Task, Completion Note, Daily Focus | Daily Priority List, Completion Notes |
Tagsno overlap | InnovationPrototypeResearch | ValidationInterviewsPrototype | PrioritizationProductivityFocusExecution | PrioritizationProductivityExecution |