View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Decision Making PERT Estimation |  Systems Thinking Future Reality Tree |  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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | 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 | High | Low |
Timedifferent | 15-45 min | 2-4 h | 15-60 min |
Participantsdifferent | 1-8 | 3-8 | 2-9 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Ideal Day Estimates, Assumption Notes, Capacity Caveats |
Tagsno overlap | EstimationUncertaintyRisk | Theory of ConstraintsSystems thinkingChange | EstimationEffortAgile |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
