View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion | ![]() Knowledge Modeling IBIS | ![]() Engineering Failure Scenario Analysis | ![]() Product Discovery Smoke Test | ![]() Decision Making Pre-Mortem |
|---|---|---|---|---|
Purposedifferent | 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. | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | 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 | 1-3 h | 1-3 h | 1-5 Tage | 20–45 min |
Participantsdifferent | 2-8 | 3-8 | Nutzertraffic | Small cross-functional group |
Formatdifferent | Workshop + async | Workshop | Async | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Interest Metrics, Conversion Signal, Learning Note | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | RationaleKnowledgeDecision | FailureResilienceRisk | ValidationExperimentsDemandGrowth | RiskDecisionFailurePlanning |



