Compliance Evidence in the Automotive Supply Chain: A Systematisation of the Quality-Document Spine and a Taxonomy of Documentation Failure Modes

Jul 16, 2026

Upload by Liam

The automotive industry relies on a dense, standardised supplier-quality and certification evidence chain spanning production part approval packages, initial sample reports, material certificates, inspection sign-offs, and type-approval dossiers. While operationally central, the chain is not treated as an information system and its failures are often framed as misconduct. This paper systematises the evidence chain across AIAG PPAP and VDA Volume 2 PPA and builds a verified taxonomy of thirteen documented failure modes. Findings show routine verification fails to surface any case, implicating the verification layer rather than only evidence authors.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages24

Reading Time1 h 0 min

AccessFree to download

Abstract

Introduction

Background, scope, and related work

Evidence assurance regimes

Systematisation of the evidence chain

Failure record and documentation cases

Failure-mode taxonomy

Evidence-burden lens (related record analysis)

Evidence-architecture requirements and open problems

Conclusion

Erdős Systems Automotive compliance-evidence research Compliance Evidence in the Automotive Supply Chain: A Systematisation of the Quality-Document Spine anda Taxonomy of Documentation Failure Modes Dawar Jyoti Deka Nilesh Sarkar [dawar@erdoslab.org](dawar@erdoslab.org) [nilesh@erdoslab.org](nilesh@erdoslab.org) 3 July 2026 arXiv :2607 .04924v 1 [ cs .CE] 6 Jul 2026 Abstract The automotive industry runs on a dense, standardised chain of supplier-quality and certification evidence: production part approval packages, initial sample reports, material certificates, inspection sign-offs, and the typeapproval dossiers. The chain is operationally central, yet no literature maps it as an information system, and its failures are studied as corporate misconduct rather than system outcomes. This paper systematises the chain and taxonomises its documented failures. First, it systematises the supplier-quality evidence chain across the two dominant regimes, AIAG PPAP and VDA Volume 2 PPA, organised by artefact, producer, verifier, trigger, approval state, and retention. Second, it compiles a compendium of thirteen compliance-documentation failures made public 2012 to 2024, built strictly from the public record and each classified by evidentiary status (adjudicated, company-acknowledged, or alleged), with the Japanese certification cluster of 2016 to 2024 as centrepiece. Third, it builds a failure-mode taxonomy over the compendium, dimensioned by mechanism, lifecycle locus, driver, and detection path, shown exhaustive and discriminating over the case set. Fourth, it derives evidence-architecture requirements mechanism by mechanism and sets an openproblems agenda. Across all thirteen cases, not one failure surfaced through the chain’s own routine verification; the record indicts the verification layer, not only the evidence authors. 1 Introduction On 3 June 2024, Japan’s Ministry of Land, Infrastructure, Transport and Tourism announced that five vehicle manufacturers, Toyota, Mazda, Yamaha Motor, Honda and Suzuki, had acknowledged irregularities in their type designation applications. The disclosures answered a ministry order of 26 January 2024 that directed 85 typedesignation holders to investigate their own certification conduct. Toyota stated the same day that seven of its models had been tested using methods differing from government standards. It temporarily halted shipments, sales and Japanese production of the three still in production: the Corolla Fielder, Corolla Axio and Yaris Cross. Akio Toyoda, in remarks reported indirectly, said the company may have been too eager to complete the tests, abbreviating them as model varieties burgeoned. Five manufacturers acknowledging irregularities on a single day is a system event, not a coincidence of misconduct. For that one day an otherwise invisible system became visible. Automotive series production is arguably the most evidence-intensive form of mass production. Behind every part and every type approval sits a standardised chain of supplier-quality and certification evidence: part approval packages, material certificates, inspection sign-offs, and the dossiers built on them (Section 4) . The chain draws notice only when it breaks, and then press coverage reports a scandal, the academic literature files a governance case study, and the information system that actually failed goes unmapped. The gap is precise. Quality-management and practitioner writing documents part approval as procedure, not as an information system with an architecture anda failure surface. The misconduct and governance literature reads the same episodes as ethics and incentive stories. Regulatory and certification studies cover what regimes require, not the document lifecycle inside firms. Business-process compliance, RegTech, and records management supply generic frameworks with no automotive evidence-chain instantiation. Section 2 surveys these five literatures and substantiates the emptiness o

FAQs

What does the paper systematise about automotive compliance evidence?

It systematises the supplier-quality evidence chain across AIAG PPAP and VDA Volume 2 PPA, organised by artefact, producer, verifier, trigger, approval state, and retention obligation.

How are compliance-documentation failures identified and classified?

The paper compiles a verified record of thirteen failures made public from 2012 to 2024, classified by evidentiary status: adjudicated, company-acknowledged, or alleged, based strictly on the public record.

What key conclusion does the paper draw about routine verification?

Across the thirteen cases, no failure surfaced through the chain’s own routine verification, indicating the verification layer as a primary locus of failure rather than only evidence authors.

Jul 16, 2026

Upload by Liam