{"closest_prior_art":[{"name":"Second System Complexity Restraint","overlap":"Directly describes the same successor-risk causal pattern and nearly the complete intervention: predecessor constraint memory, separate work classes, a successor core contract, constraint-function mapping, ambition triage, a complexity budget, staged releases, and launchability protection.","remaining_difference":"The proposal instantiates the pattern for a digital-collections discovery portal and adds a specific ten-day audit, predecessor-search sample, accessibility mandate, and reversible collection-level migration procedure.","source_ids":["SRC1"]},{"name":"USF consolidated digital-collections repository migration","overlap":"Uses test collections, collection-by-collection crosswalk adaptation, preservation of legacy exports and records for comparison, record sampling, identifier-based reconciliation, metadata checkpoints, and explicit deferral of cleanup projects. It also documents how remediation and expanded projects slowed migration.","remaining_difference":"It is a migration case study rather than an ex ante second-system governance protocol; it does not define a constraint-function inventory, cumulative complexity budget, parity-versus-ambition firewall, or formal release ladder.","source_ids":["SRC3"]},{"name":"East Carolina University replacement discovery layer","overlap":"Documents real predecessor discovery defects, heterogeneous metadata and display requirements, collaborative mapping decisions, recorded test searches, customization burdens, and a mid-project platform change caused by performance problems.","remaining_difference":"It does not attribute risk to relaxation of a successful predecessor's focusing constraints or govern additions through a core contract, complexity budget, staged deferral, and reversible collection migration.","source_ids":["SRC2"]}],"contrastive_claim_falsifier":"The remaining claim is falsified if the bounded backlog audit finds no accumulated postponed ambitions tied to relaxation of predecessor constraints, or if applying the proposed classifications and charter does not measurably reduce launch-tier cross-class items, unresolved dependencies, validation work, or ownerless support obligations compared with the combined-backlog baseline.","contrastive_claim_remaining":"In a library discovery-successor project that exhibits the second-system pattern, applying the full protocol to the real backlog will produce a materially more separable and testable launch tier than ordinary migration planning alone, while retaining mandatory accessibility and continuity obligations and a reversible collection-level escape path.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"The bounded search covered the proposal and its named mechanisms, second-system-effect terminology, discovery-layer and digital-repository replacement cases, migration practices, metadata crosswalks, parallel validation, and an applicable accessibility standard. Four opened sources span four publishers and include primary research and an official standard.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"A read-only review of 30 backlog items and 12 predecessor search journeys can be completed without a build or cutover and can compare work-class mixing, dependencies, validation burden, maintenance ownership, and disputed classifications against the baseline.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"},"distinct_testable_claim":{"rationale":"Although the governing pattern substantially collides with SRC1, a narrower domain claim remains testable: whether its combined application to an actual library discovery backlog produces a more separable, supportable, and verifiable launch tier than ordinary migration planning.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"The authorized first step is read-only, retains governance and specialist vetoes, and excludes production changes, procurement, deletion, and predecessor retirement. Accessibility cannot legitimately be demoted because WCAG supplies testable conformance criteria; the stated halt conditions preserve that obligation.","source_ids":["SRC3","SRC4"],"status":"PASS"},"supported_problem":{"rationale":"The general second-system problem is directly documented, while library cases show heterogeneous metadata requirements, search defects, mapping complexity, remediation opportunities, special handling, and migration-slowing expansion. Evidence does not establish that the unnamed target library presently has the exact asserted backlog state.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"}},"prior_art_disposition":"SUBSTANTIAL_COLLISION","problem_evidence":{"finding":"The general problem is visible and library-specific subproblems are empirically illustrated: discovery replacements encounter heterogeneous mappings and test-search requirements, while repository migration can combine crosswalk work, metadata remediation, accessibility concerns, collection exceptions, and follow-on ambitions. The searched sources do not independently verify the complete factual condition of the unnamed institution.","source_ids":["SRC1","SRC2","SRC3"],"status":"PARTLY_SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P112","screen_survival":false,"search_lanes":{"component_combination":{"no_result_note":null,"queries":["\"constraint release inventory\" \"rewrite scope firewall\"","\"parity then expansion gate\" successor charter complexity budget","library discovery implementation scope backlog MVP migration acceptance testing","digital collections discovery portal replacement metadata migration reversible collection phased"],"source_ids":["SRC1","SRC2","SRC3"]},"direct_problem_and_intervention":{"no_result_note":"The exact proposal title was not found, but searches for its uncommon mechanism names returned a direct conceptual match.","queries":["\"Constraint-Memory Gate\" \"Successor Digital-Collections Discovery Portal\"","\"second system effect\" library discovery","library discovery system migration parallel testing predecessor search parity phased cutover","\"second-system syndrome\" discovery portal metadata migration"],"source_ids":["SRC1","SRC2","SRC3"]},"products_practices_and_standards":{"no_result_note":null,"queries":["site:ala.org library system migration discovery layer user testing metadata","site:oclc.org discovery migration testing library WorldCat Discovery implementation checklist","site:w3.org WAI WCAG 2.2 recommendation accessibility web official","site:loc.gov digital collections migration metadata stable identifiers guidance"],"source_ids":["SRC2","SRC3","SRC4"]},"synonyms_and_historical_terms":{"no_result_note":null,"queries":["\"second-system effect\" successor system scope control constraints","\"second system effect\" library discovery","\"second-system syndrome\" discovery portal metadata migration","library systems migration best practices discovery layer parallel run rollback"],"source_ids":["SRC1","SRC2","SRC3"]}},"sources":[{"claims_supported":["A constrained successful predecessor can be followed by an overambitious successor when deferred features and generalizations enter together.","The described countermeasure already includes predecessor constraint memory, separate work classes, a successor core contract, complexity budgeting, staged releases, and launchability protection.","The source uses the same uncommon mechanism names, including Constraint-Release Inventory, Rewrite Scope Firewall, Successor Charter, and Parity-Then-Expansion Gate."],"publisher":"The Encyclopedia of Abstractions","source_id":"SRC1","source_type":"OTHER","title":"Second System Complexity Restraint","url":"https://abstractopedia.org/archetypes/second_system_complexity_restraint/"},{"claims_supported":["A real library catalog replacement faced heterogeneous classification, vocabulary, MARC-display, and metadata-granularity requirements.","The predecessor had documented relevance, interface, functionality, and indexing failures.","Implementation documentation included test search terms, mapping decisions, and comments on the predecessor; performance problems prompted a platform change."],"publisher":"American Library Association, Library Resources & Technical Services","source_id":"SRC2","source_type":"PRIMARY_RESEARCH","title":"Customizing an Open Source Discovery Layer at East Carolina University Libraries: The Cataloger's Role in Developing a Replacement for a Traditional Online Catalog","url":"https://journals.ala.org/index.php/lrts/article/view/6039/7738"},{"claims_supported":["A large digital-collections migration required collection-by-collection crosswalk adaptation, test collections, metadata checkpoints, record sampling, and identifier-based reconciliation.","The team retained exported metadata and continued access to legacy records for comparison because of data-loss concerns.","Metadata cleanup and expanded partner projects slowed migration, while other remediation was explicitly deferred and tracked after migration."],"publisher":"University of South Florida","source_id":"SRC3","source_type":"PRIMARY_RESEARCH","title":"A case study on migrating large digital collections into a consolidated repository","url":"https://pure.lib.usf.edu/ws/portalfiles/portal/42048692/A%20case%20study%20on%20migrating%20large%20digital%20collections%20into%20a%20consol.pdf"},{"claims_supported":["WCAG 2.2 is an official W3C Recommendation for accessible web content.","Its success criteria are testable and suitable for design specifications, procurement, regulation, and contractual requirements.","Accessibility therefore has an independently testable standards basis and should not be treated as an optional ambition."],"publisher":"World Wide Web Consortium","source_id":"SRC4","source_type":"OFFICIAL_STANDARD","title":"Web Content Accessibility Guidelines (WCAG) 2.2","url":"https://www.w3.org/TR/WCAG22/"}],"world_novelty_boundary":"This bounded public-web screen found a substantial conceptual collision and adjacent library implementations. It cannot establish world novelty, patentability, market size, expert acceptance, realized value, or the absence of uncatalogued, paywalled, proprietary, or differently worded prior art."}