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Criterion
Paper illustration of the Lightning Decision Jam working structure.
Facilitation
Decision Jam
Paper notes move from an inbox to action, project and calendar collections.
Operations
Getting Things Done
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
A hypothetical failure makes concrete risks, signals, and fitting mitigations visible.
Decision Making
Pre-Mortem
Purposedifferent
When a decision is stuck, Decision Jam loosens the knot through structured separation of problem, idea, and selection. The format creates movement without jumping prematurely at the first seemingly elegant answer.With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory.Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it.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
LowMediumLowLow
Timedifferent
60-90 min1-2 h Setup, laufend45-90 min20–45 min
Participantsdifferent
4-1012-8Small cross-functional group
Formatdifferent
WorkshopAsyncWorkshop + asyncWorkshop
Outputdifferent
Problem Cluster, Prioritized Challenge, ExperimentAction Lists, Project List, Review RoutineAssumption List, Critical Assumptions, Learning PlanRisk list, Mitigation plan, Assumption log
Tagsno overlap
FacilitationDecisionProblem solvingWorkshop
ProductivityPlanningTasksExecution
AssumptionsRiskDecisionDiscovery
RiskDecisionFailurePlanning
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