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| Criterion | ![]() Agile Specification by Example | ![]() Agile Ideal Days | ![]() Decision Making PERT Estimation | ![]() Agile Planning Poker |
|---|---|---|---|---|
Purposedifferent | 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. | 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 estimates within the team diverge too much, it puts differing expectations on a common test bench. It separates rough complexity from unspoken assumptions. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 60-90 min pro Feature | 15-60 min | 15-45 min | 2-5 min je Item |
Participantsdifferent | 3-6 | 2-9 | 1-8 | 3-9 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Example Table, Acceptance Tests | Ideal Day Estimates, Assumption Notes, Capacity Caveats | PERT Estimate, Expected Value, Risk Notes | Relative Estimates, Assumption Notes, Split Candidates |
Tagsno overlap | AgileRequirementsExamplesBehavior-Driven Development | EstimationEffortAgile | EstimationUncertaintyRisk | EstimationAgileRelative sizingTeam |



