ISO 17356-3:2005描述了可用于机动车的实时操作系统的概念，该系统能够进行多任务处理。它不是与特定实现相关的产品描述。它还指定了操作系统应用程序接口（API）。 ISO 17356-1汇编了一般惯例、术语解释和缩写。ISO 17356-6讨论了实施和系统生成方面。 操作系统的规范代表了一个统一的环境，支持有效利用汽车控制单元应用软件的资源。操作系统是一个单处理器操作系统，用于分布式嵌入式控制单元。

ISO 17356-3:2005 describes the concept of a real-time operating system, capable of multitasking, which can be used for motor vehicles. It is not a product description which relates to a specific implementation. It also specifies the operating system Application Program Interface (API). General conventions, explanations of terms and abbreviations have been compiled in ISO 17356-1. ISO 17356-6 discusses implementation and system generation aspects. The specification of the OS represents a uniform environment which supports efficient utilisation of resources for automotive control unit application software. The OS is a single processor operating system meant for distributed embedded control units.