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Selected:Incident Timeline AnalysisARID (Active Reviews for Intermediate Designs)Root Cause AnalysisCausal Factor Analysis
| Criterion |  DevOps Incident Timeline Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Root Cause Analysis |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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 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. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 60-180 min | 2–4 h review as a planning range; preparation and evaluation additional | 1-4 h | 2-6 h |
Participantsdifferent | 3-10 | Designers, developers as users, and facilitation | 3-8 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | ArchitectureEngineeringFeedbackValidationTasks | Root causeProblem solvingQualityIncident | CausalityIncidentRoot causeTimeline |