{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","cell_id":"modular_decomposition__chemistry_materials","arm":"BREADTH_PROBE_ONE_SHOT","candidate_id":"modular_decomposition__chemistry_materials__P1","proposal_index":1,"version":0,"title":"Function-Partitioned Protective Coating Stack for Galvanized Steel Enclosures","problem":"A materials laboratory is developing a waterborne protective coating for outdoor galvanized-steel enclosures. Its single formulation simultaneously carries substrate adhesion, corrosion inhibition, moisture-barrier formation, ultraviolet resistance, abrasion resistance, and appearance. Changing one ingredient for one function can alter cure, rheology, pigment dispersion, adhesion, or permeability, so the laboratory cannot determine or modify a local function without reconsidering the whole formulation.","actors":["Coating formulation chemist","Surface and process engineer","Corrosion-testing technician","Quality-assurance lead","Product engineer responsible for the coated enclosure"],"observable_state":"Formulation records show that a change to an inhibitor, binder, pigment, or ultraviolet stabilizer triggers broad rescreening across adhesion, cure, corrosion, weathering, and appearance. Failed coupons are difficult to attribute to one responsibility because ingredients and functions share the same film, and ownership of cross-property defects is ambiguous.","consequence":"Optimization becomes an entangled whole-formulation exercise: unrelated functions must be reconsidered together, failure attribution is weak, and a locally motivated material substitution can invalidate the complete coating qualification package.","affected_objective":"Enable bounded formulation changes and attributable testing while preserving the integrated coating system's required adhesion, corrosion protection, weathering, appearance, and manufacturability.","intervention":"Decompose the single multifunctional film into three responsibility-bearing modules: a primer responsible for galvanized-steel adhesion and corrosion inhibition, a midcoat responsible for water and ion transport resistance, and a topcoat responsible for ultraviolet exposure, abrasion, and appearance. Define interlayer contracts covering permitted substrate preparation, application sequence, wet and dry film ranges, cure window, surface condition before overcoating, chemical compatibility, and intercoat adhesion. Keep each layer's internal formulation locally owned, but require compatibility checks and whole-stack coupon tests before any layer substitution is accepted. Begin with provisional boundaries that may be merged if interlayer coordination costs or necessary cross-layer chemistry outweigh local reasoning gains.","structural_mapping":[{"archetype_element":"Entangled whole","domain_realization":"The one-pot coating formulation in which adhesion, inhibition, barrier, weathering, mechanical, and appearance functions share ingredients and cure chemistry."},{"archetype_element":"Responsibility partitioning","domain_realization":"Primer owns adhesion and inhibition; midcoat owns transport resistance; topcoat owns ultraviolet, abrasion, and appearance performance."},{"archetype_element":"Module boundary","domain_realization":"A physically distinct cured or partially cured layer separates each responsibility-bearing formulation."},{"archetype_element":"Interface contract","domain_realization":"Specified surface preparation, layer order, film ranges, cure state, overcoat window, chemical compatibility, and intercoat-adhesion requirements govern what crosses layer boundaries."},{"archetype_element":"Encapsulation","domain_realization":"A layer's ingredients and internal optimization may change without exposing every formulation detail to the other layer owners, provided its interface outputs remain within contract."},{"archetype_element":"Module steward","domain_realization":"A named formulation owner maintains each layer, while the quality-assurance lead owns interlayer contracts and unresolved cross-layer defects."},{"archetype_element":"Integration policy","domain_realization":"Layer-level tests are followed by compatibility screening and standardized whole-stack exposure and adhesion tests on the target substrate."},{"archetype_element":"System-level coherence","domain_realization":"Only the assembled coating stack, not a successful isolated layer, can satisfy the enclosure's complete protection and manufacturing requirements."}],"mechanism_mapping":[{"mechanism_slug":"product_subsystem_decomposition","role":"Implements product subsystem decomposition by turning the monolithic coating into functionally coherent primer, barrier, and topcoat subsystems that can be formulated and tested locally.","counterfactual_removal":"Without functional subsystem boundaries, ingredient changes remain whole-formulation changes and local responsibility cannot be isolated."},{"mechanism_slug":"interface_contract","role":"Makes each layer substitutable only within explicit preparation, cure, application, and adhesion conditions.","counterfactual_removal":"Without the contract, hidden interlayer dependencies would be discovered only during late stack testing, reducing the layers to nominal rather than operational modules."},{"mechanism_slug":"compatibility_check","role":"Screens each proposed layer change against adjacent layers before whole-stack qualification.","counterfactual_removal":"Without compatibility checks, locally acceptable layers could be combined into a stack that blisters, delaminates, cures poorly, or loses barrier continuity."},{"mechanism_slug":"reintegration_policy","role":"Preserves coating-level invariants through assembled-coupon tests after local module tests.","counterfactual_removal":"Without reintegration, local optimization could fragment the coating system and provide no evidence that the layers still perform as one protective finish."}],"causal_chain":["Multiple coating responsibilities occupy one formulation and share ingredients and cure pathways.","A change aimed at one responsibility perturbs properties used by other responsibilities.","Those cross-effects force broad retesting and obscure which function or owner caused a failure.","Partitioning responsibilities into primer, barrier, and topcoat modules gives each change a bounded initial locus.","Explicit interlayer contracts expose the limited conditions that neighboring layers may rely upon.","Layer-level tests reject local failures, while compatibility checks detect boundary failures before full integration.","Whole-stack tests verify that locally acceptable modules still compose into a coherent protective coating.","If the contracts remain stable under selected substitutions, some formulation changes can be investigated locally without treating the entire coating recipe as the initial unit of change."],"baseline":"Continue optimizing a single waterborne multifunctional coating recipe. Every ingredient change is reviewed against the full formulation and proceeds directly to the complete adhesion, corrosion, weathering, mechanical, and appearance test set because no smaller responsibility-bearing unit exists.","nearest_rivals":["Design-of-experiments optimization of the monolithic formulation, which searches the entangled ingredient space without changing responsibility boundaries.","A fixed comprehensive screening panel for every one-pot formulation revision, which improves consistency of evaluation but does not localize change or ownership.","A conventional multilayer coating treated as one inseparable recipe, where layers exist physically but have no explicit functional ownership, interface contract, or locally testable substitution rule."],"remaining_contrastive_claim":"The testable contrast is not that multiple layers alone improve protection. It is that function-based layer ownership, bounded interlayer contracts, and mandatory reintegration checks can make at least some material substitutions locally investigable while retaining coating-stack coherence; the rivals either retain the monolith or add layers without operational modularity.","authority_safety":{"decision_authority":"The laboratory formulation lead may authorize benchtop design and coupon testing; only the product qualification authority may approve production use or specification changes.","authorized_first_step":"Document provisional layer responsibilities and interface variables, then prepare a bounded coupon comparison using existing approved laboratory materials and established handling procedures.","excluded_actions":["Production-line substitution","Field application to customer or operational assets","Waiving existing chemical hygiene, ventilation, waste, or personal-protective-equipment requirements","Introducing unreviewed reactive, toxic, flammable, or environmentally restricted substances","Reducing the existing whole-system qualification requirements","Representing benchtop results as product qualification"],"halt_rollback":"Stop the trial if unsafe application or cure behavior appears, if layers cannot be removed or contained under laboratory procedures, or if interface failures prevent interpretable testing. Quarantine and dispose of trial coupons under existing procedures, retain the current monolithic formulation as the baseline, and revise or abandon the proposed boundaries before further work."},"negative_tests":{"strongest_counterevidence":"The coating's essential performance may depend on coupled chemistry spanning nominal layers—for example interdiffusion, shared cure reactions, or inhibitor transport—or interlayer defects may dominate performance. In that case the proposed boundaries add processing and handoffs without creating meaningful local autonomy.","problem_falsifier":"A review of recent formulation changes would falsify the stated problem if most changes already affect only one measurable function, rarely require broad retesting, and yield failures that can be attributed and owned without whole-formulation reasoning.","intervention_falsifier":"The intervention would be falsified for this system if, after controlling substrate preparation, total film thickness, and cure conditions, a layer that passes its local tests cannot be changed without reformulating adjacent layers, or if compliant layer combinations repeatedly fail whole-stack tests because the proposed interface variables omit controlling dependencies.","risks":["Intercoat delamination, blistering, solvent entrapment, or incomplete cure","Loss of beneficial cross-function chemistry present in the monolithic film","Extra application and cure steps that impair manufacturability","Hidden diffusion or aging dependencies that escape short laboratory tests","Over-modularization that creates more interface work than local reasoning benefit","Local metric optimization that degrades whole-stack corrosion or weathering performance","Prematurely freezing incorrect responsibility boundaries","Ambiguous ownership of defects arising at interfaces"]},"next_evidence_step":"Run one bounded study of 18 standardized galvanized-steel coupons: three replicates each of the current monolithic baseline, a reference three-layer stack, three stacks in which exactly one module is locally varied, and one deliberately interface-stressed stack. Hold substrate preparation and target total dry-film thickness constant. Record application and cure behavior, layer-specific properties, intercoat adhesion, barrier response, and the existing abbreviated whole-stack corrosion and weathering screens. The immediate decision is only whether failures and changes can be localized using the proposed contracts; no production-performance conclusion is authorized.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"No comparison with other proposals was performed under runtime isolation; this one-shot candidate is defined by the physical and responsibility-based decomposition of an entangled multifunctional coating into locally owned chemical-material layers with explicit reintegration tests.","revision_record":{"parent_version":null,"progress_targets_addressed":["Initial one-shot candidate generated from the supplied modular-decomposition archetype and chemistry-and-materials domain card."],"conceptual_changes":[],"operational_changes":[],"evidence_changes":[],"claim_changes":[]}}