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Criterion
The Scrum Team inspects people, interactions, processes, tools, and the Definition of Done, then agrees on a few testable improvements.
Agile
Sprint Retrospective
Paper illustration of DIBB with its method-specific working model.
Product Strategy
DIBB
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Purposedifferent
When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together.DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report.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.
Complexitysame
LowLowLow
Timedifferent
Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter1-2 h45-90 min
Participantsdifferent
Scrum Team2-82-8
Formatdifferent
WorkshopWorkshop + asyncWorkshop + async
Outputdifferent
Improvement actions, Team agreementsDIBB document, Belief list, Bet list, Learning reportAssumption List, Critical Assumptions, Learning Plan
Tagsno overlap
RetrospectiveImprovementLearning
StrategyDecisionAssumptionsHypothesis
AssumptionsRiskDecisionDiscovery
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Methods with strong topical overlap with the current selection, not yet in the comparison.

Paper illustration for OODA Loop.
Decision Making
OODA Loop
A structured reflection surfaces what was liked, learned, lacked, and longed for. It is a conversation format and does not validate actions automatically.
Agile
4Ls Retrospective
Paper illustration of a review with planned work, actual event sequence, comparison, and assigned improvement actions.
Operations
After-Action Review
Paper illustration of a calm four-quadrant Assumption Map with hypothesis cards and emphasis on important assumptions with little evidence.
Product Discovery
Assumption Mapping