{"id":"cohesion-transcends-pattern-classification","text":"SRP and ISP's cohesion-based decomposition guidance may offer a useful lens for reasoning about modification patterns that span the GoF's Creational-Structural-Behavioral classification: the four behavioral modification dimensions (wrapping depth, decoupling topology, state capture, state-strategy duality) extend across the structural-behavioral boundary (e.g., the wrapping continuum spans Proxy/Decorator to Strategy), so cohesion principles could potentially provide classification-independent decomposition heuristics wherever these modification patterns operate — though this connection remains a plausible design reasoning approach rather than a validated analytical method.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["cohesion-constrains-modification-space","modification-space-transcends-gof-classification"],"outlist":[],"label":"Cohesion operates within a modification space that crosses GoF classification boundaries, yielding universal decomposition criteria"}],"dependents":["actor-framing-operationalizes-classification-transcendent-cohesion","solid-transcends-classification-both-axes"],"metadata":{"source_type":"derived","review_result":"pass","repair_action":"softened"},"created_at":"2026-06-17T23:16:44+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":"cohesion-transcends-pattern-classification","truth_value":"IN","reason":"SL justification valid","antecedents":["cohesion-constrains-modification-space","modification-space-transcends-gof-classification"],"label":"Cohesion operates within a modification space that crosses GoF classification boundaries, yielding universal decomposition criteria"},{"node":"cohesion-constrains-modification-space","truth_value":"IN","reason":"SL justification valid","antecedents":["solid-cohesion-enriches-reinforcement","behavioral-four-dimensional-modification-space"],"label":"Previously unconnected subgraphs — the cohesion pair (SRP/ISP) and the modification space have no shared ancestry but the connection is genuine: cohesion tells you WHERE to cut the modification space"},{"node":"solid-cohesion-enriches-reinforcement","truth_value":"IN","reason":"SL justification valid","antecedents":["srp-isp-dual-cohesion-principles","solid-mutual-reinforcement"],"label":"Cohesion at two granularities strengthens the reinforcement loop — modules AND their interfaces resist responsibility creep"},{"node":"srp-isp-dual-cohesion-principles","truth_value":"IN","reason":"SL justification valid","antecedents":["srp-rooted-in-cohesion","isp-related-to-grasp-high-cohesion","srp-canonical-definition","isp-no-forced-dependency-on-unused-methods"],"label":"Both principles independently cite cohesion as their root, but constrain it at class vs. interface granularity"},{"node":"srp-rooted-in-cohesion","truth_value":"IN","reason":"premise"},{"node":"isp-related-to-grasp-high-cohesion","truth_value":"IN","reason":"premise"},{"node":"srp-canonical-definition","truth_value":"IN","reason":"premise"},{"node":"isp-no-forced-dependency-on-unused-methods","truth_value":"IN","reason":"premise"},{"node":"solid-mutual-reinforcement","truth_value":"IN","reason":"SL justification valid","antecedents":["srp-violation-increases-coupling","ocp-open-for-extension-closed-for-modification","lsp-substitutability-of-subtypes","isp-no-forced-dependency-on-unused-methods","dip-depend-on-abstractions-not-concretions"],"label":"Five SOLID principles form a reinforcing system, not independent rules"},{"node":"srp-violation-increases-coupling","truth_value":"IN","reason":"premise"},{"node":"ocp-open-for-extension-closed-for-modification","truth_value":"IN","reason":"premise"},{"node":"lsp-substitutability-of-subtypes","truth_value":"IN","reason":"premise"},{"node":"dip-depend-on-abstractions-not-concretions","truth_value":"IN","reason":"premise"},{"node":"behavioral-four-dimensional-modification-space","truth_value":"IN","reason":"SL justification valid","antecedents":["behavioral-modification-three-dimensions","state-strategy-dual-behavioral-composition"],"label":"The three-dimension taxonomy (wrapping, decoupling, capture) omits State's transition mechanism; State/Strategy duality adds a fourth dimension for how behavioral variation is triggered (state-bound vs client-selected)"},{"node":"behavioral-modification-three-dimensions","truth_value":"IN","reason":"SL justification valid","antecedents":["behavioral-modification-bifurcates-wrapping-and-decoupling","command-dual-role-decoupling-and-state"],"label":"A depth-3 (bifurcation into wrapping and decoupling) and depth-2 (Command's dual role) combine to reveal a third dimension (state capture) and a cross-cutting pattern (Command)"},{"node":"behavioral-modification-bifurcates-wrapping-and-decoupling","truth_value":"IN","reason":"SL justification valid","antecedents":["wrapping-taxonomy-access-to-algorithm","decoupling-topology-composition-based"],"label":"Two independent composition dimensions — wrapping for intra-object modification, topology for inter-object coordination"},{"node":"wrapping-taxonomy-access-to-algorithm","truth_value":"IN","reason":"SL justification valid","antecedents":["proxy-decorator-wrapping-spectrum","skin-vs-guts-extension-spectrum"],"label":"Two depth-1 wrapping spectrums (Proxy-Decorator and Decorator-Strategy) connect at Decorator to form a continuous access→skin→guts taxonomy"},{"node":"proxy-decorator-wrapping-spectrum","truth_value":"IN","reason":"SL justification valid","antecedents":["proxy-vs-decorator-static-vs-dynamic","decorator-dynamic-alternative-to-subclassing","decorator-transparent-enclosure"],"label":"Three base beliefs on wrapping semantics unify into a spectrum from dynamic enhancement to static access control"},{"node":"proxy-vs-decorator-static-vs-dynamic","truth_value":"IN","reason":"premise"},{"node":"decorator-dynamic-alternative-to-subclassing","truth_value":"IN","reason":"premise"},{"node":"decorator-transparent-enclosure","truth_value":"IN","reason":"premise"},{"node":"skin-vs-guts-extension-spectrum","truth_value":"IN","reason":"SL justification valid","antecedents":["decorator-vs-strategy-skin-vs-guts","gof-template-method-vs-strategy-inheritance-vs-delegation","decorator-dynamic-alternative-to-subclassing"],"label":"Three patterns form a spectrum from external wrapping to internal algorithm replacement"},{"node":"decorator-vs-strategy-skin-vs-guts","truth_value":"IN","reason":"premise"},{"node":"gof-template-method-vs-strategy-inheritance-vs-delegation","truth_value":"IN","reason":"premise"},{"node":"decoupling-topology-composition-based","truth_value":"IN","reason":"SL justification valid","antecedents":["four-decoupling-patterns-topology","behavioral-patterns-favor-composition"],"label":"The decoupling topology (depth-1) is enabled by composition preference (depth-1) — topology and mechanism unify"},{"node":"four-decoupling-patterns-topology","truth_value":"IN","reason":"SL justification valid","antecedents":["four-patterns-decouple-senders-receivers","command-decouples-invoker-from-receiver","gof-mediator-replaces-many-to-many-with-one-to-many","chain-of-responsibility-implicit-receiver","gof-observer-intent-one-to-many-dependency"],"label":"Decoupling patterns span a topology from reified request to implicit broadcast"},{"node":"four-patterns-decouple-senders-receivers","truth_value":"IN","reason":"premise"},{"node":"command-decouples-invoker-from-receiver","truth_value":"IN","reason":"premise"},{"node":"gof-mediator-replaces-many-to-many-with-one-to-many","truth_value":"IN","reason":"premise"},{"node":"chain-of-responsibility-implicit-receiver","truth_value":"IN","reason":"premise"},{"node":"gof-observer-intent-one-to-many-dependency","truth_value":"IN","reason":"premise"},{"node":"behavioral-patterns-favor-composition","truth_value":"IN","reason":"SL justification valid","antecedents":["behavioral-patterns-class-vs-object","behavioral-patterns-encapsulate-variation","favor-composition-over-inheritance"],"label":"Behavioral object patterns are composition-over-inheritance put into practice"},{"node":"behavioral-patterns-class-vs-object","truth_value":"IN","reason":"premise"},{"node":"behavioral-patterns-encapsulate-variation","truth_value":"IN","reason":"premise"},{"node":"favor-composition-over-inheritance","truth_value":"IN","reason":"premise"},{"node":"command-dual-role-decoupling-and-state","truth_value":"IN","reason":"SL justification valid","antecedents":["command-memento-state-capture-family","four-decoupling-patterns-topology","command-encapsulates-request-as-object","command-undo-via-unexecute-and-history"],"label":"Command appears in two depth-1 derivations (decoupling topology and state-capture family), confirming its dual role"},{"node":"command-memento-state-capture-family","truth_value":"IN","reason":"SL justification valid","antecedents":["command-memento-token-objects","command-undo-via-unexecute-and-history","gof-memento-iteration-two-benefits"],"label":"Token objects enable temporal decoupling through captured state"},{"node":"command-memento-token-objects","truth_value":"IN","reason":"premise"},{"node":"command-undo-via-unexecute-and-history","truth_value":"IN","reason":"premise"},{"node":"gof-memento-iteration-two-benefits","truth_value":"IN","reason":"premise"},{"node":"command-encapsulates-request-as-object","truth_value":"IN","reason":"premise"},{"node":"state-strategy-dual-behavioral-composition","truth_value":"IN","reason":"SL justification valid","antecedents":["state-models-behavioral-transitions","skin-vs-guts-extension-spectrum"],"label":"These two depth-1 conclusions each describe a behavioral variation mechanism via composition; recognizing them as orthogonal duals reveals the two independent axes along which behavior can vary"},{"node":"state-models-behavioral-transitions","truth_value":"IN","reason":"SL justification valid","antecedents":["strategy-vs-state-distinction","gof-state-vs-table-driven-key-difference","gof-state-object-creation-tradeoff"],"label":"State occupies a unique niche defined by contrast with Strategy (different binding) and tables (different representation), plus its own creation tradeoffs"},{"node":"strategy-vs-state-distinction","truth_value":"IN","reason":"premise"},{"node":"gof-state-vs-table-driven-key-difference","truth_value":"IN","reason":"premise"},{"node":"gof-state-object-creation-tradeoff","truth_value":"IN","reason":"premise"},{"node":"modification-space-transcends-gof-classification","truth_value":"IN","reason":"SL justification valid","antecedents":["behavioral-four-dimensional-modification-space","structural-behavioral-wrapping-continuum"],"label":"The four-dimensional modification space crosses the structural-behavioral classification boundary via the Proxy→Decorator→Strategy wrapping axis"},{"node":"structural-behavioral-wrapping-continuum","truth_value":"IN","reason":"SL justification valid","antecedents":["structural-patterns-boundary-vs-wrapping-spectra","wrapping-taxonomy-access-to-algorithm"],"label":"Structural patterns classify Proxy/Decorator as wrapping patterns; the wrapping taxonomy extends the same axis into behavioral territory (Strategy), so the GoF category boundary is porous"},{"node":"structural-patterns-boundary-vs-wrapping-spectra","truth_value":"IN","reason":"SL justification valid","antecedents":["adapter-facade-interface-boundary-pair","proxy-decorator-wrapping-spectrum"],"label":"Two orthogonal structural axes — translation across interfaces vs augmentation within a single interface"},{"node":"adapter-facade-interface-boundary-pair","truth_value":"IN","reason":"SL justification valid","antecedents":["facade-vs-adapter-new-vs-existing-interface","adapter-after-design-bridge-before-design","facade-defines-higher-level-interface-to-subsystem"],"label":"Two structural patterns addressing interface boundaries at complementary granularities"},{"node":"facade-vs-adapter-new-vs-existing-interface","truth_value":"IN","reason":"premise"},{"node":"adapter-after-design-bridge-before-design","truth_value":"IN","reason":"premise"},{"node":"facade-defines-higher-level-interface-to-subsystem","truth_value":"IN","reason":"premise"}]}}