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| Criterion |  Innovation Double Diamond |  Knowledge Modeling IBIS |  Decision Making Constraint Analysis |  Decision Making Pre-Mortem |
|---|---|---|---|---|
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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | Wochen bis Monate | 1-3 h | 30-90 min | 20–45 min |
Participantsdifferent | 3-12 | 2-8 | 2-8 | Small cross-functional group |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Issue Map, Positions, Argument Notes | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | ProcessDivergenceInnovation | RationaleKnowledgeDecision | ConstraintsDecisionPlanningOptions | RiskDecisionFailurePlanning |