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 Time Blocking |  Architecture ARID (Active Reviews for Intermediate Designs) |  Decision Making Pre-Mortem |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | With a calendar that grows on request, the method makes available time explicit again. It combines appointments, focus work, and buffer into a more realistic day structure. | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 15-30 min Planung, laufend | 2–4 h review as a planning range; preparation and evaluation additional | 20–45 min | 45-60 min |
Participantsdifferent | 1 | Designers, developers as users, and facilitation | Small cross-functional group | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Risk list, Mitigation plan, Assumption log | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | PlanningTime managementFocus | ArchitectureEngineeringFeedbackValidationTasks | RiskDecisionFailurePlanning | AssumptionsRiskExperimentsValidation |