{"schema_version":1,"research_id":"eoa_inverse_innovation_exp06_external_evaluation_20260803","source_assessment_id":"representation_independent_interface_contract__accounting_auditing:P1:v0","cell_id":"representation_independent_interface_contract__accounting_auditing","search_queries":["site:pcaobus.org journal entries audit data completeness accuracy information produced by company AS 1105","site:aicpa-cima.com audit data standards general ledger journal entry standard","ISO 21378 audit data collection standard official journal entries","XBRL GL standard journal entry taxonomy official","AICPA Audit Data Standards general ledger standard official data extraction ERP auditors","site:iaasb.org ISA 500 audit evidence information produced by entity accuracy completeness electronic data","audit data standards adoption journal entry data ERP extraction research","journal entry testing data extraction completeness population audit research ERP migration","\"Preparing for Audit Data Analytics\" AICPA General Ledger Audit Data Standards DOI","site:publications.aaahq.org \"Preparing for Audit Data Analytics\"","site:sciencedirect.com \"Refining Journal Entry Data Processing\" 2025","site:arxiv.org audit data extraction journal entries ERP standard","AICPA AuditData-API GitHub journal entries OpenAPI current","github aicpa-ads AuditData-API","site:github.com/aicpa-ads AuditData-API"],"sources":[{"source_id":"S1","title":"AS 1105: Audit Evidence","publisher":"Public Company Accounting Oversight Board","url":"https://pcaobus.org/oversight/standards/auditing-standards/details/AS1105","source_class":"STANDARD","publication_date":"Undated current standard page; accessed 2026-08-03","accessed_at":"2026-08-03","claims_supported":["Auditors must obtain sufficient appropriate audit evidence.","Company-produced information used as evidence must be tested for accuracy and completeness, or relevant controls must be tested.","Auditors must assess whether information is sufficiently precise and detailed.","Electronic evidence reliability depends partly on controls over the information, so interface conformance cannot replace source and IT-control evaluation."]},{"source_id":"S2","title":"Audit Focus: Journal Entries","publisher":"Public Company Accounting Oversight Board","url":"https://pcaobus.org/resources/staff-publications/audit-focus/audit-focus-journal-entries","source_class":"GOVERNMENT_OR_REGULATOR","publication_date":"2025-01","accessed_at":"2026-08-03","claims_supported":["PCAOB staff continued to identify a large number of journal-entry-testing deficiencies.","Observed deficiencies include failure to test completeness of the journal-entry population.","Accuracy and completeness requirements extend to populations imported into audit or extraction tools.","PCAOB describes IT specialists, structured templates, and journal-entry practice aids as observed good practices."]},{"source_id":"S3","title":"ISO 21378:2019 — Audit data collection","publisher":"International Organization for Standardization","url":"https://www.iso.org/standard/70823.html","source_class":"STANDARD","publication_date":"2019-11-20","accessed_at":"2026-08-03","claims_supported":["The standard defines accounting data elements and information needed to extract audit data.","It explicitly supports representation of accounting information independently of accounting and ERP systems.","It covers general-ledger and other transaction areas and was confirmed as current in 2025.","It is close prior art for a representation-independent audit-data boundary."]},{"source_id":"S4","title":"AICPA Audit Data API — Request for Review","publisher":"American Institute of Certified Public Accountants","url":"https://assets.ctfassets.net/rb9cdnjh59cm/1mZ2jrGZdLZ7Uoa53kUyVt/39b57f2128b4bf527c2fc333b13ba41e/audit-data-api-standard-exposure-draft.pdf","source_class":"STANDARD","publication_date":"2022","accessed_at":"2026-08-03","claims_supported":["Audit data is commonly transferred in discrete custom-format files.","AICPA convened a working group to define an OpenAPI audit-data transfer standard using existing AICPA and ISO terminology.","The proposed surface includes journal-entry and trial-balance endpoints, entity and time parameters, data fields, and reconciliation expectations.","The draft sought adoption-feasibility and completeness feedback from vendors and auditors, evidencing stakeholder interest but not completed adoption."]},{"source_id":"S5","title":"XBRL Global Ledger: Transactional Reporting","publisher":"XBRL International","url":"https://www.xbrl.org/the-standard/what/global-ledger/","source_class":"STANDARD","publication_date":"Undated; accessed 2026-08-03","accessed_at":"2026-08-03","claims_supported":["XBRL GL is an open, system-independent standard for transactional accounting information, including journal entries.","It is intended to preserve supporting detail, facilitate audit review, consolidate heterogeneous data, and transfer transactions between systems.","It is close prior art to hiding heterogeneous ERP representations behind a common accounting representation."]},{"source_id":"S6","title":"Journal-entry testing using Excel","publisher":"Journal of Accountancy","url":"https://www.journalofaccountancy.com/issues/2021/nov/journal-entry-testing-excel/","source_class":"AUTHORITATIVE_SECONDARY","publication_date":"2021-11-01","accessed_at":"2026-08-03","claims_supported":["A documented baseline practice obtains journal entries and trial balances in spreadsheets, recalculates balances, and compares them for completeness.","The workflow checks total debits and credits and uses implementation-specific spreadsheet columns and formulas.","The example shows a low-tooling comparator available to smaller audit practices and confirms that professional judgment remains necessary."]},{"source_id":"S7","title":"ISA 500 Series Project","publisher":"International Auditing and Assurance Standards Board","url":"https://www.iaasb.org/consultations-projects/isa-500-series","source_class":"OFFICIAL_GUIDANCE","publication_date":"2026 project page","accessed_at":"2026-08-03","claims_supported":["IAASB is actively modernizing audit-evidence standards in response to technology used by entities, auditors, and related organizations.","The project seeks more consistent behavior in obtaining and evaluating audit evidence.","Technology modernization does not eliminate professional skepticism or independent evidence evaluation."]},{"source_id":"S8","title":"ERP Data Provisioning Financial Control Testing","publisher":"arXiv","url":"https://arxiv.org/abs/2607.09712","source_class":"PRIMARY_RESEARCH","publication_date":"2026-06-23","accessed_at":"2026-08-03","claims_supported":["Financial-control test environments can expose personal, supplier, banking, and commercially sensitive ERP records.","A prototype combined masking, tokenization, release approval, reconciliation validation, and synthetic scenarios, supporting technical plausibility of a governed offline test environment.","The study used only a synthetic dataset and explicitly did not establish production validity, illustrating the evidence gap between prototype conformance and live assurance."]}],"problem_evidence":{"support":"MODERATE","rationale":"The underlying audit problem is visible and consequential: PCAOB reports numerous journal-entry deficiencies, including failures to test population completeness, while AICPA states that audit data commonly arrives in custom formats. ISO, AICPA, and XBRL created system-independent data standards in response to heterogeneous accounting systems. However, none of the eight sources measures how often ERP replacement specifically breaks an unchanged audit procedure through ordering, signs, mutable spreadsheet columns, or failure semantics.","source_ids":["S1","S2","S3","S4","S6"]},"stakeholder_evidence":{"support":"MODERATE","rationale":"Credible authorizers and adopter classes are identifiable. PCAOB imposes evidence requirements on registered auditors; AICPA solicited vendors and auditors on an audit-data API; ISO names auditors, auditees, developers, and IT professionals as users; and IAASB is modernizing evidence standards for technology. This is expressed institutional need, but no controller, ERP owner, audit firm, or funder is committed to this candidate or its proposed pilot.","source_ids":["S1","S2","S3","S4","S7"]},"prior_art":{"proximity":"SUBSTANTIAL_COLLISION","closest_analogues":[{"name":"ISO 21378 audit-data collection standard","similarity":"Already defines ERP-independent accounting data elements and extraction information for general-ledger and other audit domains, closely matching the candidate's representation-independent accounting meaning.","remaining_difference":"The public ISO description does not establish the candidate's sealed object lifecycle, typed incomplete-retrieval failures, exact-once behavioral laws, or implementation-parameterized black-box acceptance suite.","source_ids":["S3"]},{"name":"AICPA Audit Data Standards and Audit Data API","similarity":"Directly targets custom-format audit-data transfer, defines journal-entry and trial-balance operations and fields in OpenAPI form, and includes reconciliation expectations across systems.","remaining_difference":"The reviewed exposure draft is primarily a transfer and field specification. Evidence was not found for immutable population versions, opaque continuation-token semantics, leakage audits, or a shared behavioral oracle whose passage governs substitution.","source_ids":["S4"]},{"name":"XBRL Global Ledger","similarity":"Provides a generic, system-independent transactional representation intended for heterogeneous environments, audit review, data transfer, aggregation, and preserved drill-down detail.","remaining_difference":"It standardizes a transactional representation rather than proving that consumers can remain independent of every physical schema through the proposed lifecycle, error, side-effect, lineage, and substitutability laws.","source_ids":["S5"]},{"name":"Spreadsheet population reconciliation","similarity":"The documented baseline tests completeness by reconciling journal-entry debits and credits to trial balances and then supports sampling.","remaining_difference":"It is file- and column-dependent, lacks reusable cross-implementation conformance, and does not govern versioning, typed partial failure, or observable leakage.","source_ids":["S6"]}],"distinctive_claim_remaining":"For one predeclared closed-period scope, an incumbent adapter and an independently implemented alternative that conform to a sealed Journal Population behavioral contract—including exact-once membership, immutable sealing, typed incomplete-retrieval failure, resolvable lineage, and representation-neutral enumeration—will produce identical contractual membership, control totals, lineage outcomes, and downstream sample-selection inputs without a consumer rewrite. The comparator is an AICPA/ISO/XBRL-style canonical representation plus the incumbent spreadsheet reconciliation. The claim is falsified by any materially different population, total, lineage result, or sample input after both implementations pass the frozen suite; by a necessary discriminator that encodes one physical representation; or by greater migration effort than the canonical-schema comparator.","confidence":"HIGH"},"implementation_evidence":{"support":"MODERATE","rationale":"OpenAPI audit-data endpoints, ISO definitions, XBRL GL, and spreadsheet reconciliation demonstrate that journal populations can be represented, transferred, queried, and reconciled across tools. A governed synthetic ERP test further supports feasibility of masking, tokenization, release approval, and automated reconciliation. No source verifies this complete behavioral object or conformance suite against two independent extractors and proprietary closed-period data. PCAOB requirements also mean black-box passage cannot by itself establish audit-evidence sufficiency or replace source and IT-control testing.","source_ids":["S1","S3","S4","S5","S6","S8"]},"scores":{"meaningful_impact":{"score":4,"rationale":"Population omissions or duplicates can undermine journal-entry selection and audit evidence, and PCAOB reports recurring completeness-related deficiencies. The candidate could reduce migration-induced ambiguity, although realized impact is unmeasured.","source_ids":["S1","S2"]},"stakeholder_pull":{"score":4,"rationale":"Regulators and standard setters visibly demand reliable electronic evidence and have invested in system-independent data and API standards. Candidate-specific commitment is absent.","source_ids":["S2","S3","S4","S7"]},"incremental_advantage":{"score":2,"rationale":"ISO 21378, AICPA ADS/API, XBRL GL, and reconciliation workflows already address much of the extraction and representation problem. Advantage is confined to richer behavioral laws, lifecycle, errors, leakage control, and reusable substitution testing, none yet empirically compared.","source_ids":["S3","S4","S5","S6"]},"distinctiveness_plausibility":{"score":3,"rationale":"The sealed behavioral object and implementation-neutral acceptance rule are contrastive against the reviewed format and transfer standards, but the search did not establish that these features are absent from full standards, products, proprietary firm tooling, or implementations.","source_ids":["S3","S4","S5"]},"technical_implementability":{"score":4,"rationale":"Existing standardized data models, OpenAPI endpoints, reconciliation routines, and governed ERP test-data methods make an offline prototype technically credible. Edge-case identity, pagination, lineage, and cross-system semantics remain to be implemented and tested.","source_ids":["S3","S4","S5","S6","S8"]},"adoption_authority_feasibility":{"score":3,"rationale":"A controller and system owner can authorize an internal read-only prototype, but the auditor independently controls reliance and evidence sufficiency. Security and source-control owners must also approve access and transformation.","source_ids":["S1","S2","S7","S8"]},"evidence_readiness":{"score":2,"rationale":"The problem and adjacent standards are documented, but there is no dependency inventory, committed partner, implemented contract, cross-implementation result, proprietary-period test, or cost benchmark.","source_ids":["S2","S3","S4","S8"]},"safety_net_benefit":{"score":3,"rationale":"A reusable oracle could reduce bespoke migration work and make explicit failures safer than silent partial populations, potentially helping smaller teams. The infrastructure and governance burden could instead disadvantage low-resource adopters.","source_ids":["S2","S6"]},"scalability":{"score":3,"rationale":"A representation-independent contract is reusable in principle and existing international standards show cross-system scope. Entity-specific accounting semantics, access controls, lineage, currencies, and auditor judgments constrain straightforward replication.","source_ids":["S3","S4","S5","S8"]}},"score_confidence":"MODERATE","costs":{"first_evidence":{"band_2026_usd":"50K_TO_250K","scope":"Freeze the behavioral contract and falsifiers; build a simple model and one read-only incumbent-export adapter; create synthetic fixtures; run the suite for one closed period; obtain one audit-methodology review.","confidence":"LOW","assumptions":["Approximately two to five person-months across software/data engineering, accounting controls, audit methodology, and security review.","Existing approved export access and a nonproduction environment are available.","No active audit procedure or production extraction path is changed."],"source_ids":["S4","S6","S8"]},"initial_deployment_startup":{"band_2026_usd":"250K_TO_1M","scope":"Production-quality contract service or library, identity and lineage design, access control, monitoring, version governance, one ERP adapter, one warehouse/file adapter, and integration with an audit consumer.","confidence":"LOW","assumptions":["One legal entity and one major ERP are in scope.","Existing identity, logging, secrets, and data-platform controls can be reused.","External auditor validation and source-control testing are separate workstreams."],"source_ids":["S1","S3","S4","S8"]},"operational_launch":{"band_2026_usd":"250K_TO_1M","scope":"Parallel closed-period operation, security and control validation, discrepancy remediation, consumer migration, auditor evaluation, training, rollback rehearsal, and approval for a bounded live use.","confidence":"LOW","assumptions":["Launch is limited to one journal population and a small consumer set.","No restatement, major data remediation, or enterprise-wide ERP redesign is required.","The incumbent path remains available during parallel operation."],"source_ids":["S1","S2","S4","S8"]},"annual_recurring":{"band_2026_usd":"50K_TO_250K","scope":"Contract stewardship, adapter maintenance, conformance regression, access and lineage monitoring, audit support, version migration, and incident response for the bounded deployment.","confidence":"LOW","assumptions":["One to two supported implementations with modest change frequency.","Costs exclude ERP licensing, the financial-statement audit fee, and enterprise data-platform operations.","Material contract revisions or additional entities would be separately funded."],"source_ids":["S1","S3","S4"]}},"verified_pipeline_gates":{"externally_supported_problem":{"status":"YES","reason":"PCAOB documents recurring journal-entry population-completeness deficiencies, and AICPA documents custom-format audit-data transfer; the precise ERP-replacement prevalence remains unmeasured.","source_ids":["S2","S4"]},"externally_credible_adopter_or_authorizer":{"status":"YES","reason":"Controllers and system owners are credible internal authorizers, while PCAOB-regulated auditors are externally accountable users. AICPA and ISO explicitly address auditors, auditees, vendors, and IT professionals, though no specific partner has committed.","source_ids":["S1","S3","S4"]},"distinct_testable_incremental_claim":{"status":"YES","reason":"The frozen two-implementation comparison has observable outcomes and explicit falsifiers beyond format-oriented standards: membership, totals, lineage, sample inputs, consumer rewrites, and whether a discriminator leaks physical representation.","source_ids":["S3","S4","S5","S6"]},"bounded_next_evidence_step":{"status":"YES","reason":"One access-approved closed period, two implementations, a fixed fixture matrix, one unchanged consumer, a canonical-schema comparator, predeclared thresholds, and explicit stop conditions bound the test.","source_ids":["S1","S4","S6","S8"]},"no_unresolved_safety_or_authority_stop":{"status":"YES","reason":"A read-only nonproduction pilot can preserve the incumbent process, require approved access and masking, stop on unexplained differences, and leave evidence-sufficiency authority with the auditor. These controls require execution but no unavoidable legal or safety prohibition was found.","source_ids":["S1","S2","S8"]},"credible_cost_scope_and_range":{"status":"UNCERTAIN","reason":"Scopes and resource-equivalent bands can be bounded, but no direct 2026 pricing, internal architecture, data-volume, control, or staffing evidence was available. The estimates are planning ranges rather than externally validated costs.","source_ids":["S4","S8"]}},"next_evidence_step":"With a named controller, financial-systems owner, security owner, and audit-methodology reviewer, use one access-approved closed period and freeze before execution: (1) scope and identity rules; (2) exact-once, reconciliation, immutability, lineage, pagination, typed-failure, and side-effect properties; (3) a fixture matrix covering ordinary entries, reversals, duplicate-looking lines, excluded statuses, multiple currencies, unsupported requests, interrupted pagination, stale tokens, and post-seal mutation; and (4) pass/fail thresholds. Implement an independent in-memory model and read-only incumbent adapter, then run the same suite and one unchanged sample-selection consumer against both. In parallel, map the incumbent data into the AICPA/ISO-style canonical-schema comparator and record engineering effort, manual mappings, discrepancies, and consumer changes. Falsify the claim on any material membership, total, lineage, or sample-input divergence after both implementations pass; any necessary representation-specific discriminator; any silently partial result; auditor determination that required evidence cannot be exposed contractually; or migration effort no lower than the canonical-schema comparator. Stop after the single-period evaluation and retain the incumbent path.","blocking_evidence":["No externally measured prevalence of ERP-replacement-induced journal-population breakage was found.","No controller, ERP owner, security owner, audit firm, or funder has committed to the pilot.","No dependency inventory shows which current consumers rely on columns, ordering, sign conventions, raw identifiers, error text, or pagination.","No two independent implementations have run a frozen behavioral conformance suite on an authorized closed-period population.","The reviewed AICPA API was an exposure draft; implementation status, adoption breadth, and any later behavioral-conformance provisions were not established by the eight-source set.","The full ISO standard and proprietary audit-firm or ERP tooling were not examined, so the remaining feature-level distinction is not exhaustive.","No auditor has determined whether the proposed lineage and sanctioned introspection are sufficient for a real procedure.","No externally validated cost, staffing, data-volume, security-control, or maintenance benchmark is available."],"research_disposition":"PARTNERED_RESEARCH_PROGRAM","world_novelty_boundary":"World novelty, patentability, freedom to operate, market size, and realized impact were not measured. The eight-source review establishes substantial collision with ERP-independent audit-data standards and practices, but it is not an exhaustive search of patents, proprietary audit-firm tooling, ERP products, full paywalled standards, or all research. The only retained distinction is the falsifiable behavioral-conformance package; no claim of world novelty is made.","arm":"COMPLETE_PROPOSAL_PORTFOLIO","candidate_version":0,"controller_recommendation":{"action":"STOP_EMPIRICAL_RESEARCH_NEEDED","repairable":false,"material_progress_observed":true,"progress_targets":["Secure a named controller/system-owner/security-owner/audit-methodology partnership and written authorization for one closed-period offline test.","Freeze the behavioral contract, canonical-schema comparator, consumer procedure, thresholds, and falsifiers before observing results.","Implement genuinely independent model and adapter code paths and execute the conformance, leakage, reconciliation, and sample-input comparisons.","Obtain an auditor-methodology determination separating contract conformance from evidence sufficiency and required source-control inspection.","Measure person-hours, mappings, discrepancies, consumer changes, security exceptions, and maintenance implications against the comparator."],"reason":"Web evidence verifies a material problem and substantial adjacent prior art, but the remaining claim concerns behavior on proprietary journal data, independent implementations, downstream sampling, workflow effort, and auditor judgment. Those questions require authorized fieldwork and live offline testing and cannot be resolved by bounded web research. Under the evaluation rule, that requires an empirical-research stop; all STOP recommendations are non-repairable."},"proposal_index":1}