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| Criterion |  Decision Making PERT Estimation |  Agile Example Mapping |  Agile Specification by Example |  Agile Ideal Days |
|---|---|---|---|---|
Purposedifferent | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | When a story carries business rules and exceptions, it brings clarity before implementation. It makes examples, open questions, and boundaries visible enough that the logic becomes jointly sound. | When business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | When effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 15-45 min | 30-60 min | 60-90 min pro Feature | 15-60 min |
Participantsdifferent | 1-8 | 3-7 | 3-6 | 2-9 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | Example Map, Acceptance Criteria, Open Questions | Example Table, Acceptance Tests | Ideal Day Estimates, Assumption Notes, Capacity Caveats |
Tagsno overlap | EstimationUncertaintyRisk | Behavior-Driven DevelopmentRequirementsExamplesRefinement | AgileRequirementsExamplesBehavior-Driven Development | EstimationEffortAgile |