View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Business Strategy GAP Analysis |  Decision Making PERT Estimation |  Product Strategy DIBB |  Decision Making Pre-Mortem |
|---|---|---|---|---|
Purposedifferent | GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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 | 15-45 min | 1-2 h | 20–45 min |
Participantsdifferent | 2-8 | 1-8 | 2-8 | Small cross-functional group |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Gap Matrix, Action Plan, Risk Notes | PERT Estimate, Expected Value, Risk Notes | DIBB document, Belief list, Bet list, Learning report | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | StrategyAnalysisPlanning | EstimationUncertaintyRisk | StrategyDecisionAssumptionsHypothesis | RiskDecisionFailurePlanning |