ISO 18542-1:2012

Overview

ISO 18542-1:2012 - "Road vehicles - Standardized repair and maintenance information (RMI) terminology - Part 1: General information and use case definition" defines the conceptual framework and use cases for creating and maintaining a standardized automotive RMI terminology. Its primary purpose is to facilitate searching of vehicle manufacturer (VM) repair and maintenance information (RMI) systems by independent operators (IOs). Part 1 describes the lifecycle, roles and processes (but not the vocabulary itself) and sets the stage for Part 2, which defines implementation requirements for a Terminology Management System (TMS), a Registration Authority and a digital annex.

Key Topics and Requirements

• Framework for agreed terminology
  • Defines how terms (US‑English source terms and their translations) are agreed, managed and published.
  • Clarifies entities, terms, translation memory and access levels.
• Use case definitions (TMS-focused)
  • UC1: User/registration, TMS administration and Change Control Board (CCB).
  • UC2: Terminology interrogation (search and retrieval).
  • UC3: Term proposal workflow and review.
  • UC4: Term translation process across defined target languages.
  • UC5: Terminology output provided for VM use.
  • UC6: Publish terminology in a digital annex for distribution.
• Process and roles
  • Specifies process users (applicants, end users, TMS administrators), process objects and governance by a Registration Authority.
  • Emphasizes lifecycle management beyond the standard (creation, review, change control).
• Interoperability and security considerations
  • Aligns with legislative requirements (EC Mandate M/421) for secure, standardized access to RMI.
• Scope limitations
  • ISO 18542‑1 focuses on structure and use cases; the actual agreed RMI terminology and its publication formats are outside Part 1’s remit.

Practical Applications and Who Uses It

• Independent operators (IOs) - garages, service providers and publishers can reliably search VM RMI systems using standardized terms.
• Vehicle manufacturers (VMs) - integrate agreed terminology into VM RMI systems to improve discoverability and regulatory compliance.
• Terminology and software vendors - build or adapt Terminology Management Systems (TMS), translation memory tools and search interfaces that conform to the use cases.
• Registration Authorities and governance bodies - operate the TMS, manage the digital annex and run the Change Control Board.
• Regulators and policymakers - reference the framework to define access obligations in type‑approval legislation.

Related Standards

• ISO 18542-2 - process implementation requirements, Registration Authority and digital annex.
• ISO 18541 series (Parts 1–4) - standardized access to automotive RMI (general, technical, UI and conformance testing).

Keywords: ISO 18542-1:2012, RMI terminology, vehicle manufacturer RMI system, independent operator, terminology management system, Registration Authority, digital annex, use cases, translation memory.