{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp03_full320_20260801","cell_id":"layer_decay_and_expiration_management__aviation_aeronautics","trajectory_id":"R","attempt_index":0,"archetype_slug":"layer_decay_and_expiration_management","domain_slug":"aviation_aeronautics","decision":"CANDIDATE","problem_id":"stale_flight_operations_document_versions","causal_lever_id":"explicit_operational_document_lifecycle_state","proposal":{"problem":"Airline flight-operations repositories and offline crew devices can retain superseded manuals, checklists, charts, and performance-data packages as discoverable documents without an unambiguous lifecycle state. A crew or dispatcher may therefore retrieve an obsolete version, while indiscriminate deletion could erase evidence needed for reconstruction or review.","actors_substrate":["flight crews and dispatchers","flight-operations document-control staff","safety and compliance reviewers","avionics and EFB administrators","versioned operational documents, repository indexes, and offline device copies"],"observable_state":"For a bounded document family, measure the number of identity-resolved versions, versions lacking current/superseded/archived state, stale versions returned by ordinary search, unresolved inbound references, offline copies diverging from the authoritative version, and successful archive restores.","consequence":"Superseded guidance can compete with current guidance at the point of operational decision, while unsafe cleanup can break traceability and event reconstruction.","affected_objective":"Reduce wrong-version retrieval without sacrificing document lineage, investigation evidence, or recoverability.","structural_mapping":[{"archetype_element":"sequential deposits","domain_realization":"Successive revisions of manuals, checklists, charts, and performance packages deposited in central repositories and device caches.","claim_kind":"CORPUS"},{"archetype_element":"stale layers masquerading as current","domain_realization":"Superseded operational documents remain searchable or locally accessible without decisive status marking.","claim_kind":"HYPOTHESIS"},{"archetype_element":"retention-versus-removal tension","domain_realization":"Removing obsolete versions reduces ambiguity, but historical versions may be needed to reconstruct what guidance was available during an earlier operation.","claim_kind":"INFERENCE"},{"archetype_element":"lifecycle governance layer","domain_realization":"Identity, age, authority, dependency, retention, disposition, restore, and revalidation controls govern each document version.","claim_kind":"INFERENCE"}],"component_map":[{"component":"layer_inventory_and_identity_map","status":"direct","domain_realization":"Canonical inventory keyed by document family, revision, applicability, and copy location."},{"component":"deposition_order_and_age_index","status":"direct","domain_realization":"Publication and supersession chronology for every revision."},{"component":"retention_policy_matrix","status":"adapted","domain_realization":"Document-class matrix specifying active, archival, and disposal periods."},{"component":"decay_function_or_aging_rule","status":"adapted","domain_realization":"Age lowers review priority only alongside supersession and access evidence; it never alone authorizes deletion."},{"component":"expiration_trigger_definition","status":"adapted","domain_realization":"Supersession, applicability change, or review-date lapse triggers removal from active presentation and human review."},{"component":"layer_value_and_risk_score","status":"adapted","domain_realization":"Ranks versions using operational authority, reconstruction value, access, staleness confidence, and deletion impact."},{"component":"dependency_and_reconstruction_check","status":"direct","domain_realization":"Pre-disposition trace of links from procedures, training, dispatch workflows, investigations, and device manifests."},{"component":"pruning_or_archival_pathway","status":"direct","domain_realization":"Refresh, mark superseded, remove from active search, archive, compact, quarantine, or destroy."},{"component":"preservation_exception_register","status":"direct","domain_realization":"Named holds for investigations, disputes, historical baselines, or safety evidence."},{"component":"deletion_audit_and_rollback_window","status":"direct","domain_realization":"Audited soft deletion with a time-bounded restore period."},{"component":"resource_budget_and_storage_tier","status":"adapted","domain_realization":"Fast access reserved for current documents; historical versions use cheaper archival tiers."},{"component":"review_cadence_and_revalidation_loop","status":"direct","domain_realization":"Periodic owner review of status, exceptions, dependencies, and restore performance."},{"component":"legal_hold_or_compliance_override","status":"adapted","domain_realization":"Authorized investigation or compliance hold blocks disposition."},{"component":"hot_warm_cold_access_state","status":"adapted","domain_realization":"Current operational, recent superseded, archived, and deep-archive access states."},{"component":"orphan_layer_detection","status":"direct","domain_realization":"Detect versions with no live operational, evidentiary, or reconstruction dependency."},{"component":"supersession_marker","status":"direct","domain_realization":"Durable marker identifies the authoritative successor and prevents ambiguous absence."},{"component":"layer_compaction_candidate_flag","status":"adapted","domain_realization":"Flag closed historical revision bundles for packaging without erasing individual provenance."},{"component":"rehydration_or_restore_procedure","status":"direct","domain_realization":"Tested retrieval, rendering, integrity verification, and lineage reconnection for archived versions."},{"component":"deletion_impact_estimate","status":"direct","domain_realization":"Estimate affected users, devices, links, investigations, and recovery difficulty before quarantine."},{"component":"stale_context_detector","status":"adapted","domain_realization":"Detect conflicts between a document's applicability metadata and the current aircraft, route, procedure, or authoritative revision."}],"mechanism_dispositions":[{"slug":"age_weighted_value_score","disposition":"selected_supporting","contribution_type":"TEST_DESIGN","adaptation_or_rejection":"Use only to prioritize human review; authority and holds veto its ranking.","counterfactual_removal":"The lifecycle remains viable, but the pilot loses a reproducible way to sample high-risk candidates."},{"slug":"archive_restore_test","disposition":"selected_load_bearing","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Exercise retrieval and readable rendering across revision age bands.","counterfactual_removal":"Archival could silently destroy practical reconstruction capability."},{"slug":"cache_eviction_rule","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Device-cache eviction optimizes capacity and can remove operationally necessary material; it does not establish document authority.","counterfactual_removal":"No material change to the proposed lifecycle chain."},{"slug":"dependency_safe_delete_check","disposition":"selected_load_bearing","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Trace operational and evidentiary inbound references before any destructive disposition.","counterfactual_removal":"Cleanup could break live use or historical reconstruction, hard-gating viability."},{"slug":"lifecycle_storage_tiering_policy","disposition":"selected_supporting","contribution_type":"OPERATIONAL","adaptation_or_rejection":"Move noncurrent but retained versions away from active presentation while preserving retrieval.","counterfactual_removal":"Safety logic remains, but retained history stays unnecessarily prominent or costly."},{"slug":"log_rotation_and_cleanup_job","disposition":"incompatible","contribution_type":"NONE","adaptation_or_rejection":"Operational documents are versioned authoritative artifacts, not a homogeneous append-only stream safe to purge by generation depth.","counterfactual_removal":"No change."},{"slug":"retention_schedule","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Map each document class to minimum retention, active-status rules, exceptions, and authorized disposition.","counterfactual_removal":"Disposition becomes ad hoc and cannot consistently balance ambiguity against preservation."},{"slug":"soft_delete_quarantine_window","disposition":"selected_load_bearing","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Hide candidates from ordinary retrieval while retaining auditable restoration before destruction.","counterfactual_removal":"A classification or bulk-action error could become immediately irreversible."},{"slug":"stale_layer_detection_dashboard","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Unify version identities and surface stale, ownerless, or inconsistently distributed copies.","counterfactual_removal":"The target condition remains invisible and cannot be systematically acted upon."},{"slug":"time_to_live_ttl_policy","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"A blind creation-time clock is unsafe for authoritative guidance; only review dates may expire, not the artifact itself.","counterfactual_removal":"No loss; supersession and applicability triggers provide safer expiration."},{"slug":"tombstone_or_deletion_marker","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Leave a durable supersession/deletion marker resolving lookups to the authoritative successor or archive status.","counterfactual_removal":"Missing versions become ambiguous and stale replicas may continue to appear authoritative."}],"causal_chain":["Inventory and identity resolution expose duplicate and divergent versions.","Applicability and supersession signals identify candidates whose active authority is doubtful.","Retention holds and dependency checks separate removable ambiguity from required evidence.","Status markers and active-search demotion prevent superseded versions from competing with current guidance.","Archival, quarantine, and restore testing preserve reconstruction while bounded destruction controls accumulation.","A shadow pilot on one document family compares ordinary retrieval with lifecycle-labeled retrieval using wrong-version selection, unresolved references, reviewer workload, and restore success."],"baseline":"Ordinary document control publishes new revisions, relies on filenames, folders, notices, and periodic manual cleanup, while historical and offline copies are handled inconsistently.","nearest_rival":"A latest-version-only portal with periodic manual reconciliation, but without explicit retained-version states, dependency gates, quarantine, or tested restoration.","authority_safety":{"affected_parties":["flight crews","dispatchers","document owners","safety investigators","aircraft operators whose procedures depend on the documents"],"decision_authority":"The operator's designated flight-operations document authority approves status and disposition; safety, compliance, and investigation owners control their holds.","authorized_first_step":"Run a read-only, shadow-mode inventory and retrieval test on one non-emergency document family; label candidate states in the test view only and make no production visibility, device, retention, or deletion changes.","excluded_actions":["automatic deletion or expiry","altering authoritative operational content","hiding production documents from crews","removing offline copies","overriding safety, investigation, or compliance holds"],"halt_rollback":"Halt if authoritative identity cannot be established, dependency coverage is incomplete, the test view presents a wrong successor, or any affected owner disputes applicability. Disable the test view and retain the pre-test inventory and labels for review."}},"negative_tests":{"strongest_counterevidence":"A representative audit may show that repository controls and device synchronization already guarantee exactly one clearly authoritative version, with historical versions inaccessible to operational users and fully reconstructable.","analogy_break":"Unlike disposable storage layers, an old operational document may remain essential evidence of the instructions applicable to a past flight; age cannot proxy for expendability.","failure_condition":"The approach fails if versions cannot be identity-resolved across central and offline copies, or if status metadata is less trustworthy than the documents it governs.","problem_falsifier":"Across the bounded document family, ordinary searches and offline devices expose no superseded version as current, every artifact has an unambiguous authority state, and historical reconstruction already succeeds under existing controls.","intervention_falsifier":"In the bounded shadow test, lifecycle labels and gated disposition do not reduce wrong-version retrieval relative to baseline, or they increase retrieval delay, unresolved references, or failed reconstruction beyond predeclared tolerances.","risks":["False staleness flags could suppress valid guidance if moved from shadow mode prematurely.","Composite scores may create false precision and encode contested priorities.","Incomplete dependency discovery could authorize harmful disposition.","Archives may be intact but unreadable with current tools.","Quarantine may conflict with an authorized hard-destruction requirement.","Metadata or tombstones may themselves become stale and misleading."]},"null_rationale":null,"classification":{"candidate_kind":"MECHANISM_COMPOSITION","prior_art_status":"UNSEARCHED","evidence_maturity":"HYPOTHESIS"},"revision_change_log":{"revision_kind":"ORIGINAL","prior_problem_id":null,"prior_causal_lever_id":null,"problem_changed":false,"causal_lever_changed":false,"conceptual_changes":[],"operational_changes":[],"repairs_addressed":[]},"confidence":0.86,"generator_notes":"Closed-book structural transfer. Empirical prevalence and effect-size claims are hypotheses; no prior-art search was performed."}