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Criterion
Game Day workspace showing the question, observations, and next decision.
DevOps
Game Day
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration for Risk Storming.
Architecture
Risk Storming
Purposedifferent
In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic.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.Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog.
Complexitydifferent
HighLowLow
Timedifferent
Halber Tag45-90 min60-90 min
Participantsdifferent
5-202-84-12
Formatdifferent
WorkshopWorkshop + asyncWorkshop
Outputdifferent
Simulation Notes, Gaps List, Updated RunbooksAssumption List, Critical Assumptions, Learning PlanAnnotated Diagram, Prioritized Risk List, Action Backlog
Tagsno overlap
ResilienceOperationsIncident
AssumptionsRiskDecisionDiscovery
RiskArchitectureWorkshopValidation
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Often compared together

Methods with strong topical overlap with the current selection, not yet in the comparison.

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 of Riskiest Assumption Test with a method-specific labelled workspace.
Product Discovery
Riskiest Assumption Test
Design sheets and interface cards connect to jointly written pseudocode with highlighted unresolved questions.
Architecture
ARID (Active Reviews for Intermediate Designs)
Paper illustration: scenarios and architectural decisions are connected to identified risks.
Architecture
ATAM (Architecture Tradeoff Analysis Method)