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Criterion
Paper illustration for ALPEN Method
Operations
ALPEN Method
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration of the Lightning Decision Jam working structure.
Facilitation
Decision Jam
Purposedifferent
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.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.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.
Complexitysame
LowLowLow
Timedifferent
10-20 min daily45-90 min60-90 min
Participantsdifferent
12-84-10
Formatdifferent
AsyncWorkshop + asyncWorkshop
Outputdifferent
Daily Plan, Time Estimates, Review NotesAssumption List, Critical Assumptions, Learning PlanProblem Cluster, Prioritized Challenge, Experiment
Tagsno overlap
PlanningTime managementProductivityOperations
AssumptionsRiskDecisionDiscovery
FacilitationDecisionProblem solvingWorkshop
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Methods with strong topical overlap with the current selection, not yet in the comparison.

Paper illustration for Kepner-Tregoe
Operations
Kepner-Tregoe
A hypothetical failure makes concrete risks, signals, and fitting mitigations visible.
Decision Making
Pre-Mortem
A3 Problem-Solving workspace showing the question, observations, and next decision.
Operations
A3 Problem Solving
Paper illustration of a calm four-quadrant Assumption Map with hypothesis cards and emphasis on important assumptions with little evidence.
Product Discovery
Assumption Mapping