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| Criterion |  Operations Root Cause Tree Analysis |  Innovation Morphological Analysis |  Operations 5 Whys |  Innovation SCAMPER |
|---|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | For an existing solution under pressure to change, the method deliberately opens space for systematic variants. It directs attention to rebuilding, combining, and repurposing rather than only new basic ideas. This produces concrete evolution paths for products, offerings, or workflows. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-3 h | 1-3 h | 15-30 min | 30-60 min |
Participantsdifferent | 2-8 | 2-8 | 2-6 | 2-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Morphological Box, Concept Combinations, Idea Shortlist | Root cause notes, Countermeasures | SCAMPER Idea List, Concept Shortlist, Variation Notes |
Tagsno overlap | Root causeTreeIncidentQuality | IdeationInnovationCreativity | Root causeIncidentLeanProblem solving | BrainstormingIdeationCreativityReframingInnovation |