{"id":"progressive-validation-three-tier-pattern-composition","text":"Pattern composition as a design methodology is validated through a three-tier empirical progression of increasing scope: MVC demonstrates that three patterns (Observer, Strategy, Composite) compose into a coherent architecture, Lexi demonstrates that eight patterns compose to solve seven distinct design problems at application scale, and ET++ demonstrates that nearly all 23 GoF patterns cohere within a single framework — establishing progressive empirical evidence that pattern composition scales from simple architecture through complete application design to comprehensive framework engineering.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["lexi-mvc-progressive-composition-validation","et-plus-plus-validates-pattern-comprehensiveness"],"outlist":[],"label":"MVC→Lexi→ET++ provides a three-tier empirical progression validating pattern composition at increasing scales of scope and complexity"}],"dependents":["design-knowledge-substantiated-by-progressive-evidence","progressive-validation-reliable-within-language-and-domain-bounds"],"metadata":{"source_type":"derived","review_result":"pass"},"created_at":"2026-06-18T01:23:05+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":"progressive-validation-three-tier-pattern-composition","truth_value":"IN","reason":"SL justification valid","antecedents":["lexi-mvc-progressive-composition-validation","et-plus-plus-validates-pattern-comprehensiveness"],"label":"MVC→Lexi→ET++ provides a three-tier empirical progression validating pattern composition at increasing scales of scope and complexity"},{"node":"lexi-mvc-progressive-composition-validation","truth_value":"IN","reason":"SL justification valid","antecedents":["mvc-as-pattern-composition-exemplar","lexi-demonstrates-pattern-composition-at-scale"],"label":"MVC and Lexi validate pattern composition at progressively increasing scales, from 3-pattern paradigm to 8-pattern application"},{"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"},{"node":"lexi-demonstrates-pattern-composition-at-scale","truth_value":"IN","reason":"SL justification valid","antecedents":["lexi-eight-patterns","frameworks-contain-multiple-patterns"],"label":"Lexi provides empirical evidence that real applications compose many patterns"},{"node":"lexi-eight-patterns","truth_value":"IN","reason":"premise"},{"node":"frameworks-contain-multiple-patterns","truth_value":"IN","reason":"premise"},{"node":"et-plus-plus-validates-pattern-comprehensiveness","truth_value":"IN","reason":"SL justification valid","antecedents":["et-plus-plus-most-comprehensive-example","lexi-demonstrates-pattern-composition-at-scale"],"label":"Two independent large-scale systems both use most of the catalog, validating comprehensiveness"},{"node":"et-plus-plus-most-comprehensive-example","truth_value":"IN","reason":"premise"}]}}