{"id":"mediator-centralizes-observer-distributes","text":"Mediator and Observer are competing patterns: Observer distributes communication via Observer and Subject objects, while Mediator centralizes communication through a single Mediator object.","truth_value":"IN","source":"entries/2026/06/17/gof-oo-chunk-22.md","source_url":"","source_hash":"","justifications":[],"dependents":["observer-mediator-distribution-centralization-tradeoff"],"metadata":{"last_premise_reviewed":"2026-06-17T18:19:22","premise_review_result":"overgeneralized"},"created_at":"2026-06-17T17:04:08+00:00","updated_at":"2026-06-17T17:04:08+00:00","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"mediator-centralizes-observer-distributes","truth_value":"IN","reason":"premise"}]}}