View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Innovation How Might We |  Product Discovery Problem Interview |  Product Discovery Opportunity Interview |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | With a stuck problem carrying many implicit assumptions, the method translates observations into open, workable questions. It sharpens the problem frame without pre-thinking the solution, turning frustration or fuzziness into a search space with clear direction. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 30–45 min | 30-60 min je Interview | 30-60 min je Interview | 1-5 Tage |
Participantsdifferent | 1-10 | 5-12 Interviews | 5-12 Interviews | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | HMW Questions, Challenge Framing, Idea Prompts | Problem Evidence, Risk Notes, Customer Segments | Interview Notes, Opportunity Themes, Customer Quotes | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | FramingOpportunityIdeationQuestions | DiscoveryInterviewsValidation | DiscoveryInterviewsOpportunityCustomer | ValidationExperimentsDemandDiscovery |