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Criterion
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
EventStorming on a long working surface: colored event cards form a business flow, friction points are marked, and a boundary separates different areas of responsibility.
Domain Modeling
EventStorming
Red Teaming method illustration showing its working structure
Decision Making
Red Teaming
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.When a domain consists of many events, rules, and states, it creates a shared modeling space for the team. It bundles language, flows, and boundaries before domain knowledge fragments into siloed views.For strategic decisions with high reach, agreement and gut feeling are often not enough. Red teaming brings deliberate opposition into the situation and tests where a plan breaks under real counterarguments.
Complexitydifferent
LowMediumHigh
Timedifferent
45-90 min2-8 h1-4 h
Participantsdifferent
2-85-123-8
Formatdifferent
Workshop + asyncWorkshopWorkshop
Outputdifferent
Assumption List, Critical Assumptions, Learning PlanEvent Timeline, Ubiquitous Language, Boundaries, Open QuestionsChallenge Findings, Risk Register, Mitigation Plan
Tagsno overlap
AssumptionsRiskDecisionDiscovery
Domain-Driven DesignEventsDiscoveryWorkshop
RiskDecisionSensemaking
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Paper illustration for Argument Mapping
Decision Making
Argument Mapping
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 Cynefin Workshop.
Decision Making
Cynefin Workshop
Paper illustration of the Lightning Decision Jam working structure.
Facilitation
Decision Jam