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Criterion
Paper illustration for Three-Point Estimation.
Decision Making
Three-Point Estimation
Paper illustration of an IBIS map with issues, positions and arguments
Knowledge Modeling
IBIS
Purposedifferent
A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes.IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus.
Complexitysame
MediumMedium
Timedifferent
10-30 min je Item1-3 h
Participantsdifferent
1-82-8
Formatsame
Workshop + asyncWorkshop + async
Outputdifferent
Three-Point Estimate, Risk Range, Assumption NotesIssue Map, Positions, Argument Notes
Tagsno overlap
EstimationUncertaintyForecasting
RationaleKnowledgeDecision
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Methods with strong topical overlap with the current selection, not yet in the comparison.

Paper illustration for Argument Mapping
Decision Making
Argument Mapping
Anonymous individual judgments pass through feedback loops to form a distribution.
Decision Making
Delphi Method
Paper illustration for PERT Estimation.
Decision Making
PERT Estimation