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| Criterion |  UX Design Customer Journey Canvas |  Agile Sprint Retrospective |  DevOps Blameless Postmortem |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | When a journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | 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. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-3 h | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 30-90 min | 45–75 min |
Participantsdifferent | 3-10 | Scrum Team | 3-12 | Team members involved |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Customer Journey Canvas, Pain Points, Experience Opportunities | Improvement actions, Team agreements | Postmortem Doc, Action Items, Timeline | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | JourneyCustomerService designCanvas | RetrospectiveImprovementLearning | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveLearningReflectionTeam |