ISO/TS 81346-3根据相应的基本标准，为系统内技术对象的指定以及连接、信号和文件的指定确立了全面的、面向实践的原则和规则。 ISO/TS 81346-3的原则适用于所有行业的所有技术领域，并可应用于技术对象生命周期的所有阶段。 不包括类型、个人、成本中心、项目等的指定。

ISO/TS 81346-3 establishes comprehensive and practice-oriented principles and rules for the designation of technical objects within a system, as well as for the designation of connections, signals and documents in accordance with the corresponding basic standards. The principles of ISO/TS 81346-3 apply to all technical fields for all industries and can be applied in all phases of the life cycle of a technical object. The designation of types, individuals, cost-centres, projects, etc. is not covered.