ISO 18542由两部分组成: 第1部分定义了商定条款的框架和流程； 第2部分定义了术语管理系统和带有数字附件的注册机构的流程实施要求。 ISO 18542的基本目的是方便独立运营商（IO）搜索车辆制造商（VM）维修和保养信息（RMI）网站。 ISO 18542-1:20 12提供了ISO 18542每个部分的概述和结构。它还指定了与维修和维护信息（RMI）术语相关的用例，以便标准化IOs对RMI的访问。 约定的汽车RMI术语本身的规定超出了ISO 18542的职权范围，因此也超出了ISO 18542-1:20 12的范围。相反，可以预见，商定的汽车RMI术语将遵循ISO 18542时间框架之外的生命周期。它将依赖于注册机构的工作、术语审查小组的创建和管理以及数字附件的出版。为了开发数字附件，将审查现有标准，并在适当和可行的情况下纳入要素。

ISO 18542 is structured in two parts:

• Part 1 defines a framework and a process for agreeing terms;
• Part 2 defines the process implementation requirements for a terminology management system and for a Registration Authority with a digital annex.

The basic purpose of ISO 18542 is to facilitate searching of vehicle manufacturer (VM) repair and maintenance information (RMI) websites by independent operators (IOs). ISO 18542-1:2012 provides a general overview and structure of each part of ISO 18542. It also specifies use cases related to repair and maintenance information (RMI) terminology in order to standardize the access to RMI for IOs. The provision of the agreed automotive RMI terminology itself is outside the remit of ISO 18542 and therefore outside the scope of ISO 18542-1:2012. Rather, it is foreseen that the agreed automotive RMI terminology will follow a lifecycle beyond the timeframe of ISO 18542. It will be dependent upon the work of a Registration Authority, a Terminology Review Group for its creation and management, and of a digital annex for its publication. For the development of the digital annex, existing standards will be reviewed and elements included where appropriate and practical.