View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations Fault Tree Analysis |  Agile Ideal Days |  Operations Root Cause Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | High | Low | Medium | High |
Timedifferent | 2-6 h | 15-60 min | 1-4 h | 1-6 Wochen |
Participantsdifferent | 3-8 | 2-9 | 3-8 | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | RiskRoot causeSafety | EstimationEffortAgile | Root causeProblem solvingQualityIncident | QualityProblem solvingRoot cause |