Based on the M/421 mandate of the European commission for the CEN/TC 301 “Road vehicles” project, since 2008 two series of standards have been developed to regulate access to repair and maintenance information (RMI) for vehicle manufacturer-specific RMI systems:

EN-ISO 18541: Road vehicles — Standardized access to repair and maintenance information (RMI)
The standard describes the use cases and their respective structures as well as application cases for repair and maintenance information (RMI). This serves to standardize the access to the various vehicle manufacturers’ RMI systems for independent market participants.

EN-ISO 18542: Standardized terminology for repair and maintenance information (RMI)
The standard defines a framework and a process for the agreement of conditions as well as requirements for the process implementation of a terminology management system.

The M/421 mandate requires the establishment and continuous maintenance of a Digital Annex for EN-ISO 18542. This has the objective of making it easier for users from the IAM (independent aftermarket) to find vehicle-specific terminology in OEM RMI systems due to a standardized search terminology. The German Institute for Standardization (DIN) has been commissioned with the project management to implement the requirements.

In the first phase of the project, stakeholders from OEMs (original equipment manufacturers) and the IAM were involved in order to establish a sustainable mapping structure for OEMs. This enables vehicle manufacturers to map their individual spare part designations to the standardized terminology of the Digital Annex. it will also make it possible to offer independent market players an easier-to-understand search structure in OEM-RMI systems in the future.

“As a representative of the IAM, TecAlliance was active in the project as a reviewer. More than 1000 terminology proposals for the “passenger cars” vehicle group were reviewed for suitability as search terms over a period of seven months, in 21 web conferences and a two-day workshop”, explains Andreas Assmann, Director of Data Quality Management at TecAlliance.

The Digital Annex will be updated every year; it is expected that it will be extended to other vehicle categories such as commercial vehicles or motorcycles.