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| Criterion |  Agile Ideal Days |  Operations Causal Factor Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | 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. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | High | High |
Timedifferent | 15-60 min | 2-6 h | 2-6 h |
Participantsdifferent | 2-9 | 3-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | EstimationEffortAgile | CausalityIncidentRoot causeTimeline | RiskQualityOperationsRoot cause |
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