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Criterion
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Incident Command workspace showing the question, observations, and next decision.
DevOps
Incident Command
Paper illustration for ALPEN Method
Operations
ALPEN Method
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.During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once.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.
Complexitydifferent
LowMediumLow
Timedifferent
45-90 minAs needed10-20 min daily
Participantsdifferent
2-84-151
Formatdifferent
Workshop + asyncWorkshop + asyncAsync
Outputdifferent
Assumption List, Critical Assumptions, Learning PlanIncident Log, Action Tracker, Stakeholder UpdatesDaily Plan, Time Estimates, Review Notes
Tagsno overlap
AssumptionsRiskDecisionDiscovery
IncidentOperationsReliability
PlanningTime managementProductivityOperations
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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
Blameless Postmortem workspace showing the question, observations, and next decision.
DevOps
Blameless Postmortem
Paper illustration for Constraint Analysis.
Decision Making
Constraint Analysis