{"actors":["Public library governing board","Library director","Circulation-policy committee","Circulation and public-service staff","Integrated-library-system administrator","Patrons with borrowed or blocked accounts","Patron advisory representatives","Collections and resource-sharing staff","Finance and records-management staff"],"affected_objective":"Maintain equitable, intelligible borrowing access and timely return of shared materials while preserving accurate accounts, replacement liability, confidentiality, notice, appeal, and staff accountability.","arm":"ORDINARY_DIVERSE_P2","authority_safety":{"authorized_first_step":"The circulation-policy committee may authorize a privacy-preserving, read-only reconstruction of historical loans and a shadow-accounting replay that calculates alternative fine, block, notice, and replacement-billing states without changing any patron account.","decision_authority":"A transition panel comprising the library director, circulation-policy chair, systems administrator, public-service representative, finance representative, and patron advisory representatives decides whether evidence warrants a pilot; the governing board authorizes any patron-facing rule change.","excluded_actions":["No modification of production patron balances, blocks, loan periods, notices, or replacement charges during the first evidence step","No disclosure of patron identities, titles borrowed, or raw transaction histories outside existing privacy controls","No branch-specific patron-facing pilot that subjects otherwise comparable borrowers to conflicting financial obligations","No retroactive assessment of charges that would not have accrued under an authorized pilot","No write-off of receivables, finance-system change, vendor contract change, or permanent policy adoption without the designated approval","No rollback that retrospectively penalizes patrons for relying on an authorized fine pause or waiver"],"halt_rollback":"Halt the evidence step if transaction linkage could reidentify patrons, shadow calculations alter production state, finance and circulation ledgers cannot be reconciled, or patron representatives identify an unmodeled obligation. Disable the shadow process, quarantine its derived outputs under existing retention rules, preserve an audit manifest, and leave production policy and accounts unchanged. Any later pilot must stop prospectively at its gate while honoring terms already communicated to patrons."},"baseline":"Current circulation practice bundles daily overdue charges, account-balance blocks, notices, staff waivers, renewal limits, and lost-item replacement billing. Exceptions may be recorded differently across service points and periods. Policy discussion therefore lacks a shared account of whether ending daily fines would be a narrow price change, a threshold change in borrowing access, or a broader rupture in the library's return-and-accountability regime.","candidate_id":"continuity_rupture_regime_diagnosis_and_transition_design__library_information_science__ORDINARY_DIVERSE_P2","causal_chain":["Daily fines, balance thresholds, notices, renewal rules, staff discretion, and replacement billing jointly shape account status and the return workflow.","Treating fine removal as either a simple waiver expansion or a total abandonment of borrower accountability obscures which mechanisms and obligations would actually persist or end.","A typed change frame separates daily monetary accrual, borrowing eligibility, item-return responsibility, replacement liability, account accuracy, appeal rights, and patron confidentiality.","Multi-scale timelines compare loan episodes, notice cycles, account histories, service-point practices, policy intervals, and patron-group experiences without treating an aggregate balance trend as the whole regime.","Process tracing tests rival mechanisms, including response to reminders, threshold blocking, accumulating debt, waiver access, renewal constraints, replacement billing, and changes in staff practice.","A shadow-accounting replay applies alternative rules to historical transactions and records where account status, notices, balances, or reconciliation paths would diverge without changing patron obligations.","Threshold and return-path tests identify whether small balances accumulate into access cliffs, whether removing accrual changes later account states, and whether rollback would create unreconcilable or unfair obligations.","The legacy map distinguishes functions to preserve, transform, archive, or retire, allowing daily overdue charges to be evaluated separately from reminders, return duties, replacement charges, appeals, and financial records.","Evidence then governs the choice among gradual adjustment, a system-wide reversible pause, staged gates, or a hybrid transition, with explicit safeguards against conflicting patron obligations and retrospective penalties.","Monitoring of returns, item availability, borrowing blocks, replacement conversion, overrides, disputes, ledger reconciliation, and subgroup outcomes triggers continuation, pause, redesign, or prospective rollback."],"cell_id":"continuity_rupture_regime_diagnosis_and_transition_design__library_information_science","consequence":"Without regime diagnosis, abrupt removal of the entire sanction bundle could unintentionally weaken needed replacement or account-reconciliation functions, while incremental waivers or grace-period extensions could preserve access cliffs, inconsistent discretion, accumulated balances, and ambiguous obligations. Either path could make later recovery difficult if circulation and finance records diverge.","diversity_from_prior_proposals":"This opportunity concerns circulation sanctions, borrower-account states, return behavior, and financial obligations rather than descriptive vocabulary, retrieval mappings, subject authority, or catalog discovery. Its intervention uses a circulation-regime ledger and shadow accounting, and its causal path runs through accrual, notices, balance thresholds, blocks, waivers, returns, and replacement liability.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","intervention":"Establish a continuity–rupture workflow for the overdue-fine regime. Define daily fines, blocks, notices, return duties, replacement liability, waivers, appeals, and account records as separate change objects; reconstruct alternative chronologies across loan, account, service-point, and policy scales; and classify the mechanisms connecting each rule to account status and item return. Run a privacy-preserving shadow ledger under several rule sets, test threshold and rollback behavior, and map every legacy function to preserve, transform, archive, compensate, or retire. Use predefined evidence gates to choose among gradual adjustment, a reversible system-wide pause, staged change, or a hybrid that can end daily accrual separately from replacement billing and return safeguards. Monitor regime fit and authorize only prospective, non-retroactive rollback.","mechanism_mapping":[{"counterfactual_removal":"Without resolution comparison, annual totals could conceal short account-block cliffs, notice-cycle effects, service-point differences, or measurement changes that alter the apparent transition shape.","mechanism_slug":"multi_resolution_change_point_and_trend_comparison","role":"Compare transaction-level events, notice cycles, monthly account states, policy intervals, service points, material classes, and privacy-reviewed patron groups across alternative onset and completion boundaries."},{"counterfactual_removal":"Without tracing the operative sequence, correlation between fines and returns could be attributed to monetary deterrence even when notices, renewal rules, blocks, replacement conversion, or staff intervention generated the observed state.","mechanism_slug":"process_tracing_and_mechanism_discrimination","role":"Trace loans through due dates, reminders, accrual, threshold blocks, renewals, waivers, returns, replacement billing, payment, appeal, and account clearance to discriminate rival and combined mechanisms."},{"counterfactual_removal":"Without paired continuity and rupture claims, the analysis could equate ending daily charges with ending all borrower responsibility or treat unchanged replacement rules as proof that nothing fundamental changed.","mechanism_slug":"continuity_rupture_claim_matrix","role":"Pair persistence and break evidence for access, return responsibility, monetary debt, staff discretion, replacement liability, records, notice, and appeal, annotated by scale, interval, observer, provenance, missingness, and dissent."},{"counterfactual_removal":"Without threshold and return-path testing, the library could miss balance levels that abruptly block borrowing or assume that removed charges can later be restored without creating new reliance, reconciliation, or fairness problems.","mechanism_slug":"threshold_hysteresis_and_reversibility_probe","role":"Replay alternative accrual and block rules to locate ranges where account eligibility changes discontinuously, test sensitivity to missing transactions, and specify the state and obligations required for prospective rollback."},{"counterfactual_removal":"Without rehearsal, circulation and finance ledgers might diverge, notices might communicate the wrong obligation, or rollback might recreate charges that patrons were told would not accrue.","mechanism_slug":"parallel_transition_and_cutover_rehearsal","role":"Run nonproduction shadow accounting, reconcile calculated states with source ledgers, rehearse notice and staff workflows, assign conflict authority, and test a cutover manifest without maintaining two patron-visible obligations."},{"counterfactual_removal":"Without post-transition audit, daily charges or associated blocks could persist through exports and local practices, while returns, replacement conversion, appeals, or financial provenance could fail silently.","mechanism_slug":"post_transition_legacy_loss_and_regime_audit","role":"After any separately authorized stage, audit account states, notices, overrides, replacement billing, finance reconciliation, return and availability measures, disputes, privacy controls, and distributional outcomes against the declared regime."}],"nearest_rivals":["Immediate cancellation of all overdue-related balances and controls as one undifferentiated policy change","A uniform grace-period extension that leaves balance thresholds and account blocks unexamined","Expanded case-by-case staff waivers without changing the underlying accrual and eligibility rules","A reminder campaign intended to improve returns without diagnosing monetary, blocking, renewal, and replacement mechanisms","Permanent shadow accounting or dual rules without a cutover decision and sunset gate"],"negative_tests":{"intervention_falsifier":"Reject the proposed transition workflow if shadow-rule classifications fail to predict account-state divergence, if circulation and finance records cannot support auditable reconciliation, if a simpler single-rule change preserves the stated invariants with fewer conflicting obligations, or if a bounded pilot cannot be stopped prospectively without violating communicated terms.","problem_falsifier":"The problem is not a continuity–rupture regime problem if daily fines are already operationally independent of blocks, notices, return duties, replacement billing, appeals, and finance records; the causal response is known and approximately linear; scale and subgroup comparisons reveal no competing rupture pattern; and an established reversible procedure already determines transition tempo.","risks":["Historical transactions may omit informal staff accommodations or attempted borrowing by patrons who left without checking out materials.","Observed return behavior may not identify whether reminders, monetary charges, borrowing blocks, or other circumstances caused the return.","Privacy-reviewed group categories may still conceal materially different experiences or permit reidentification in small cells.","Shadow accounting may reproduce inconsistent legacy waivers and make them appear to be intended policy.","A temporary pause may change expectations in ways that historical replay cannot represent.","Maintaining finance and circulation shadow states may create reconciliation errors or unauthorized secondary records.","Replacement charges could be mistakenly conflated with punitive overdue charges.","Staff may apply nominally uniform rules differently during a transition.","Prospective rollback could confuse patrons even when it does not impose retroactive charges."],"strongest_counterevidence":"A reconciled transaction sample could show that daily overdue charges are a detachable accounting field: notices, return timing, borrowing eligibility, replacement conversion, appeals, and finance records remain invariant when that field is removed, with no threshold, subgroup, or return-path conflict. That evidence would favor a simpler governed rule change rather than the full transition regime."},"next_evidence_step":"For one completed twelve-month circulation interval, create a privacy-preserving stratified sample of loan episodes covering material classes, service points, notice sequences, account-balance bands, waivers, returns, and replacement conversions. Build the typed evidence ledger, annotate missing and changed measurement periods, and replay at least four isolated rule sets: current rules, no daily accrual, delayed accrual, and blocks tied to unreturned-item status rather than balance. Report account-state divergence, threshold crossings, return-path requirements, ledger reconciliation failures, notice conflicts, override patterns, and disagreements recorded by patron and front-line staff representatives. Do not alter production accounts or patron communications.","observable_state":"For each sampled loan episode and derived account state: privacy-preserving record key; item class; checkout, due, renewal, notice, return, lost-status, replacement, waiver, payment, appeal, and clearance timestamps where available; applicable policy version and service point; daily accrual and balance trajectory; block threshold and eligibility state; staff override provenance; finance-ledger reconciliation status; shadow-rule outcomes; divergent notices or obligations; prospective rollback requirements; missingness annotations; patron-service disputes; representative disagreements; and aggregated return, availability, block, replacement-conversion, and unresolved-account measures by approved comparison group.","prior_art_status":"UNSEARCHED","problem":"A public library is deciding whether and how to end daily overdue fines. The existing regime couples monetary accrual with notices, balance-based borrowing blocks, staff waivers, renewal rules, return responsibility, replacement billing, appeals, and financial records. Decision makers cannot yet tell which functions would remain continuous, which patron groups might experience a real access rupture, whether balance thresholds create nonlinear effects, or whether gradual, staged, pilot, hybrid, or abrupt change best fits the causal and administrative dynamics.","proposal_index":2,"remaining_contrastive_claim":"This is not merely a fee waiver, grace-period adjustment, or reminder redesign. The proposal makes transition tempo contingent on evidence separating daily accrual from borrowing eligibility, return responsibility, replacement liability, staff discretion, notices, appeals, and ledger integrity, and it prohibits patron-visible dual obligations or retroactive rollback.","revision_record":{"claim_changes":["Initial version; all causal and transition claims are framed as hypotheses to test, with no assertion of novelty, prevalence, demand, or effect size."],"conceptual_changes":["Initial version decomposes the overdue-fine regime into accrual, eligibility, notices, return duties, replacement liability, discretion, appeals, and records."],"evidence_changes":["No external evidence consulted; prior art remains unsearched."],"operational_changes":["Initial version bounds the first step to read-only reconstruction and isolated shadow accounting before any patron-facing decision."],"parent_version":null,"progress_targets_addressed":["Material independence from the sealed first opportunity","Concrete actors, objective, baseline, problem, intervention, and consequence","Complete archetype structural mapping","Explicit mechanism mappings and counterfactual removals","Independent causal chain and observable state","Nearest rivals and remaining contrastive claim","Bounded authority, exclusions, halt conditions, and prospective rollback","Problem and intervention falsifiers, risks, counterevidence, and next evidence step"]},"schema_version":1,"structural_mapping":[{"archetype_element":"Change Object, Property, and Invariant Frame","domain_realization":"Separate daily monetary accrual, borrowing eligibility, item-return responsibility, replacement liability, notices, staff discretion, appeals, financial records, and patron confidentiality; preserve intelligible obligations, shared-material access, accurate accounts, due process, and privacy."},{"archetype_element":"Multi-Scale Timeline and Boundary Set","domain_realization":"Compare due-date events, notice cycles, account histories, monthly circulation states, service-point practices, policy versions, material classes, and patron-group experiences, including missing transactions and alternative start, stabilization, and recovery boundaries."},{"archetype_element":"Change-Mechanism and Regime Classifier","domain_realization":"Test continuous price response, accumulated balances, block-threshold crossing, notice effects, renewal constraints, staff-mediated reorganization, replacement-billing substitution, policy shock, and symbolic fine removal with unchanged access controls."},{"archetype_element":"Continuity–Rupture Evidence Ledger","domain_realization":"Record paired persistence and break evidence for each rule and obligation, including provenance, observer position, temporal coverage, privacy-approved group, uncertainty, missingness, service-point variation, and dissent."},{"archetype_element":"Threshold, Path-Dependence, and Reversibility Profile","domain_realization":"Estimate ranges where balances trigger borrowing cliffs, where notices or replacement conversion change account trajectories, and where patron reliance, ledger updates, communicated terms, or staff workflow changes make the return path asymmetric."},{"archetype_element":"Affected-Party, Legacy, and Loss Map","domain_realization":"Assign fine balances, loan histories, notices, replacement claims, waivers, appeal records, staff knowledge, finance entries, patron expectations, and policy authority to preserve, transform, compensate, archive, or retire without retaining punitive mechanisms by default."},{"archetype_element":"Transition-Regime, Safeguard, and Cutover Plan","domain_realization":"Compare immediate cessation, staged thresholds, a reversible system-wide pause, and hybrid sequencing; gate any patron-visible change on privacy review, ledger reconciliation, workflow rehearsal, clear notices, appeal access, non-retroactivity, conflict authority, and explicit pilot or coexistence sunset."},{"archetype_element":"Regime Monitor, Recovery, and Revision Loop","domain_realization":"Track account-state divergence, returns, availability, blocks, replacement conversion, overrides, disputes, subgroup outcomes, notice accuracy, finance reconciliation, privacy incidents, reliance obligations, and regime mismatch, with assigned triggers for continuation, pause, redesign, or prospective rollback."}],"title":"Diagnosing the Transition from Daily Overdue Fines to a Different Borrower-Accountability Regime","version":0}