{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","cell_id":"inversion_of_control__chemistry_materials","arm":"BREADTH_PROBE_ONE_SHOT","candidate_id":"inversion_of_control__chemistry_materials__P1","proposal_index":1,"version":0,"title":"Material-State-Triggered Cure Advancement for Thick Epoxy Composites","problem":"A fixed time-temperature recipe advances thick fiber-reinforced epoxy parts through cure stages according to controller time, although the part's internal temperature and reaction state determine whether it is ready. Variability in initial temperature, layup thickness, resin history, and heat transfer forces the recipe designer to guess when each part can safely advance.","actors":["Composite process engineer who defines the qualified cure envelope","Oven or autoclave controller that applies heat and pressure","Embedded dielectric and temperature sensors representing the material state","Production technician responsible for the run","Quality engineer who evaluates cured-part acceptance"],"observable_state":"During nominally identical fixed-recipe runs, embedded thermocouples can show different core-to-surface temperature gradients, while dielectric response can cross a predefined cure-state threshold before or after the scheduled end of a dwell. The observable mismatch is a scheduled ramp occurring while the material-state criteria are unmet, or a dwell continuing after those criteria have remained satisfied.","consequence":"Advancing too early can leave an insufficiently cured region or combine the next temperature ramp with ongoing exothermic reaction; waiting longer than necessary occupies equipment and subjects the part to additional thermal exposure. Operators may compensate with conservative holds without knowing which condition applies to a particular part.","affected_objective":"Advance each cure stage only when the individual part is demonstrably ready, while preserving the qualified temperature, pressure, gradient, and maximum-duration limits.","intervention":"Replace timer-only stage advancement with a bounded material-state pull rule. The cure controller holds within the approved stage envelope until validated dielectric and temperature conditions persist for a specified confirmation window. That readiness event calls a preapproved stage-transition callback; the controller may then execute, but not redesign, the next qualified ramp. Maximum hold times, sensor-disagreement rules, manual approval, and a fixed-recipe fallback remain under process-engineer authority.","structural_mapping":[{"archetype_element":"Usual controller pushes action","domain_realization":"The oven recipe advances ramps and dwells at predetermined elapsed times."},{"archetype_element":"Context holder","domain_realization":"The curing part, represented by embedded dielectric response and internal temperature measurements, contains the immediate readiness information."},{"archetype_element":"Inverted control boundary","domain_realization":"Material-state evidence may authorize a discrete transition between preapproved cure stages; it cannot alter the qualified envelope or final acceptance criteria."},{"archetype_element":"Activation rule","domain_realization":"A transition request becomes valid only when the dielectric cure proxy is within its specified band, the core-to-surface gradient is below its limit, temperature is within the stage window, and all conditions persist for the confirmation interval."},{"archetype_element":"Interface contract","domain_realization":"Sensors publish timestamped values and quality flags; a validator emits only READY, NOT_READY, SENSOR_FAULT, or TIMEOUT; the controller accepts READY solely at registered transition points."},{"archetype_element":"Guardrail policy","domain_realization":"Hard temperature, pressure, heating-rate, gradient, sensor-validity, and maximum-hold limits remain independent of the readiness callback."},{"archetype_element":"Override or fallback path","domain_realization":"Sensor conflict, silence, timeout, or limit violation blocks automatic advancement and returns the run to the approved fixed recipe or a documented operator hold-and-review procedure."},{"archetype_element":"Audit trail","domain_realization":"The system records raw signals, validation results, trigger time, controller response, overrides, and the recipe version for each part."}],"mechanism_mapping":[{"mechanism_slug":"event_listener_or_webhook","role":"A controller-side event listener receives the validated material-readiness event instead of repeatedly advancing from elapsed time alone.","counterfactual_removal":"Without the event listener, the material state remains observational and cannot initiate a stage transition, so control has not actually been inverted."},{"mechanism_slug":"callback_function","role":"Each permitted readiness event invokes one narrowly registered callback that requests the next preapproved ramp or dwell.","counterfactual_removal":"Without the callback slot, readiness would require an operator or central scheduler to initiate every transition, restoring the original push direction."},{"mechanism_slug":"kanban_pull_system","role":"A one-transition authorization token functions as a pull signal: the current cure stage releases the next stage only after the part demonstrates readiness.","counterfactual_removal":"Without the single-use pull authorization, later stages could be pushed into an unready part or multiple transitions could be released from one signal."}],"causal_chain":["Fixed elapsed-time control separates stage initiation from the part-specific location of cure-readiness information.","Embedded dielectric and temperature measurements expose that local readiness information as reviewable signals.","A validator converts concordant, persistent measurements into a single-use readiness event under a narrow interface contract.","The material-readiness event, rather than elapsed time alone, calls the next-stage transition.","Independent hard limits constrain the called transition, while faults and timeouts route to a fallback.","Recorded trigger-to-response and post-cure measurements reveal whether state-triggered advancement better aligns transitions with verified material condition."],"baseline":"The qualified fixed cure recipe advances stages at preset times, possibly using thermocouples for alarms or operator observation, but material measurements do not hold the exclusive right to authorize normal stage transitions.","nearest_rivals":["A longer fixed dwell adds timing margin but leaves the timer as initiator and does not use part-specific readiness.","Continuous model-predictive control estimates cure state and optimizes heater commands; unlike the proposed intervention, it can govern the trajectory rather than merely authorize discrete preapproved transitions.","Operator-reviewed endpoint monitoring uses similar measurements, but a person still polls the state and initiates each transition instead of a registered material-state event doing so.","A safety interlock can block an unsafe ramp, but blocking a push is not the same as the material state positively releasing the next stage."],"remaining_contrastive_claim":"The candidate's defining claim is limited to control direction: within a fixed qualified envelope, a validated signal originating from the individual part receives the exclusive normal right to release each discrete cure-stage transition. Merely monitoring, optimizing, delaying, or interlocking a centrally initiated schedule would not instantiate this claim.","authority_safety":{"decision_authority":"The accountable composite process engineer owns thresholds, qualified envelopes, fallback selection, and authorization of any production use; the quality authority retains final part-disposition authority.","authorized_first_step":"Run the proposed validator in read-only shadow mode during instrumented coupon cures; it may log hypothetical transition requests but may not command the oven or change an approved recipe.","excluded_actions":["Autonomous heater, pressure, or cooling commands during the first evidence step","Expansion beyond preapproved stage transitions","Relaxation of existing hard safety limits or material acceptance tests","Use of a single unvalidated sensor as a readiness trigger","Deployment on production parts before process qualification"],"halt_rollback":"Halt the study on sensor drift, signal disagreement beyond the predefined tolerance, missing audit records, or any temperature or pressure excursion. Because the first step is shadow-only, rollback consists of disabling the validator and continuing the unchanged approved recipe; later trials must default to that recipe on fault or timeout."},"negative_tests":{"strongest_counterevidence":"Across deliberately varied but in-spec coupons, the dielectric and temperature criteria either fail to distinguish readiness before destructive testing or recommend transitions that conflict with measured cure uniformity, exotherm behavior, or accepted material properties.","problem_falsifier":"The control mismatch is absent if fixed scheduled transition times already coincide with validated readiness across the bounded variability studied, or if the central controller's existing model predicts readiness more reliably than measurements from the part.","intervention_falsifier":"The intervention fails if state-triggered transition times do not track independent post-cure evidence, if valid signals arrive too late to be operationally usable, or if sensor faults and disagreements occur too often for the material state to exercise dependable activation rights.","risks":["A dielectric proxy may reflect local rather than whole-part cure state.","Embedded sensors may perturb the laminate or fail under processing conditions.","Noisy or drifting thresholds may cause premature activation or starvation.","A single-use event may conceal spatial temperature or cure gradients.","Timeout fallback may systematically reproduce the original mismatch.","Indirect event-driven control may make sequence reconstruction difficult without a complete audit trail.","Qualification evidence from coupons may not transfer to thicker or differently shaped parts."]},"next_evidence_step":"Conduct a bounded shadow study on twelve non-production coupons spanning three predeclared, in-spec sources of timing variation: initial temperature, laminate thickness, and resin out-time. Apply the unchanged fixed recipe while logging two internal temperatures, one surface temperature, and dielectric response. Before testing, freeze the readiness rule and fault logic. Compare each hypothetical trigger with the scheduled transition and with independent post-cure degree-of-cure and thermal-uniformity checks. Proceed to any commanded trial only if the signal is complete, concordant, auditable, and never requests advancement in a coupon that fails the independent checks.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"Runtime isolation forbids comparison with prior proposals; this one-shot candidate realizes inversion as material-state authorization of discrete thermoset cure transitions.","revision_record":{"parent_version":null,"progress_targets_addressed":[],"conceptual_changes":[],"operational_changes":[],"evidence_changes":[],"claim_changes":[]}}