{"id":"mvc-as-pattern-composition-exemplar","text":"MVC demonstrates that complex architectures emerge from composing simple patterns: Observer handles model-view notification, Strategy handles view-controller flexibility, and Composite handles nested view hierarchies — proving that patterns compose into architectures.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["gof-mvc-uses-observer-composite-strategy","gof-mvc-view-controller-is-strategy-pattern","gof-mvc-three-objects-model-view-controller"],"outlist":[],"label":"MVC is a case study in composing three patterns into a coherent architecture"}],"dependents":["lexi-mvc-progressive-composition-validation","lexi-pattern-composition-reliably-applicable","mvc-robust-composition-architecture","mvc-validates-behavioral-modification-space-coverage","pattern-composition-scales-to-architecture"],"metadata":{"source_type":"derived","review_result":"unnecessary"},"created_at":"2026-06-17T17:53:17+00:00","updated_at":"2026-06-18T06:15:08+00:00","reviewed_at":"2026-06-18T06:15:08+00:00","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"mvc-as-pattern-composition-exemplar","truth_value":"IN","reason":"SL justification valid","antecedents":["gof-mvc-uses-observer-composite-strategy","gof-mvc-view-controller-is-strategy-pattern","gof-mvc-three-objects-model-view-controller"],"label":"MVC is a case study in composing three patterns into a coherent architecture"},{"node":"gof-mvc-uses-observer-composite-strategy","truth_value":"IN","reason":"premise"},{"node":"gof-mvc-view-controller-is-strategy-pattern","truth_value":"IN","reason":"premise"},{"node":"gof-mvc-three-objects-model-view-controller","truth_value":"IN","reason":"premise"}]}}