{"id":"three-reuse-mechanisms-composition-default","text":"OO design provides three distinct reuse mechanisms — inheritance, object composition, and parameterized types (templates/generics) — with composition validated as the default for its runtime flexibility and encapsulation preservation, while parameterized types offer a third axis (type parameterization) orthogonal to the inheritance-composition choice.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["parameterized-types-third-reuse-mechanism","composition-superiority-for-reuse"],"outlist":[],"label":"Third reuse mechanism enriches the design space beyond the binary inheritance-vs-composition framing"}],"dependents":["abstract-factory-techniques-recapitulate-reuse-spectrum","reuse-mechanisms-ordered-with-principled-inheritance-boundary"],"metadata":{"source_type":"derived","review_result":"pass"},"created_at":"2026-06-18T00:02:15+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":"three-reuse-mechanisms-composition-default","truth_value":"IN","reason":"SL justification valid","antecedents":["parameterized-types-third-reuse-mechanism","composition-superiority-for-reuse"],"label":"Third reuse mechanism enriches the design space beyond the binary inheritance-vs-composition framing"},{"node":"parameterized-types-third-reuse-mechanism","truth_value":"IN","reason":"premise"},{"node":"composition-superiority-for-reuse","truth_value":"IN","reason":"SL justification valid","antecedents":["favor-composition-over-inheritance","inheritance-breaks-encapsulation","inheritance-compile-time-composition-run-time","delegation-composition-as-powerful-as-inheritance"],"label":"Four independent arguments converge on composition's superiority over inheritance"},{"node":"favor-composition-over-inheritance","truth_value":"IN","reason":"premise"},{"node":"inheritance-breaks-encapsulation","truth_value":"IN","reason":"premise"},{"node":"inheritance-compile-time-composition-run-time","truth_value":"IN","reason":"premise"},{"node":"delegation-composition-as-powerful-as-inheritance","truth_value":"IN","reason":"premise"}]}}