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| Criterion |  DevOps Blameless Postmortem |  Innovation Crazy 8s |  Architecture ARID (Active Reviews for Intermediate Designs) |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | 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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 30-90 min | 8-15 min | 2–4 h review as a planning range; preparation and evaluation additional | 4-5 Tage |
Participantsdifferent | 3-12 | 1-10 | Designers, developers as users, and facilitation | 5-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Sketch Set, Idea Shortlist, Direction Options | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | BrainstormingSketchingSpeedDivergenceDesign sprint | ArchitectureEngineeringFeedbackValidationTasks | Design sprintPrototypeValidationInnovation |