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Criterion
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration for ALPEN Method
Operations
ALPEN Method
Paper illustration of a review with planned work, actual event sequence, comparison, and assigned improvement actions.
Operations
After-Action Review
Purposedifferent
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.With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time.After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement.
Complexitysame
LowLowLow
Timedifferent
45-90 min10-20 min daily20-45 min
Participantsdifferent
2-813-12
Formatdifferent
Workshop + asyncAsyncWorkshop + async
Outputdifferent
Assumption List, Critical Assumptions, Learning PlanDaily Plan, Time Estimates, Review NotesLessons learned, Action items, Event summary
Tagsno overlap
AssumptionsRiskDecisionDiscovery
PlanningTime managementProductivityOperations
LearningOperationsImprovement
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A hypothetical failure makes concrete risks, signals, and fitting mitigations visible.
Decision Making
Pre-Mortem
Paper illustration of a calm four-quadrant Assumption Map with hypothesis cards and emphasis on important assumptions with little evidence.
Product Discovery
Assumption Mapping
Paper illustration for Constraint Analysis.
Decision Making
Constraint Analysis
Paper illustration of DIBB with its method-specific working model.
Product Strategy
DIBB