{"id":"abstract-factory-often-uses-factory-methods","text":"Abstract Factory classes are most commonly implemented using factory methods, but can also be implemented using Prototype; a concrete factory is often a Singleton","truth_value":"IN","source":"entries/2026/06/17/gof-oo-chunk-8.md","source_url":"","source_hash":"","justifications":[],"dependents":["factory-method-as-foundational-creational"],"metadata":{"last_premise_reviewed":"2026-06-17T18:19:22","premise_review_result":"pass"},"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":"abstract-factory-often-uses-factory-methods","truth_value":"IN","reason":"premise"}]}}