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| Criterion |  Innovation Morphological Analysis |  Systems Thinking CATWOE Analysis |  Innovation How Might We |  Innovation Reverse Brainstorming |
|---|---|---|---|---|
Purposedifferent | 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. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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. | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-3 h | 45-90 min | 30–45 min | 30-60 min |
Participantsdifferent | 2-8 | 3-8 | 1-10 | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Morphological Box, Concept Combinations, Idea Shortlist | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | HMW Questions, Challenge Framing, Idea Prompts | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | IdeationInnovationCreativity | Systems thinkingFramingStakeholders | FramingOpportunityIdeationQuestions | BrainstormingIdeationCreativityRisk |