ISO/TR 15686-11:20 14提供了已标准化的术语和概念定义的汇编，以建立适用于建筑物或土木工程的建造和使用及其使用寿命规划方面的词汇，如ISO/TC 59/SC 14设计寿命文件中所应用的。 ISO/TR 15686-11:20 14包括ISO 15686不同部分中包含的术语和定义，以及它们的缩写名称（如适用）。 第3条中列出的概念的术语和定义，以及任何相关的缩写名称，包括代表在SC 14中已经标准化和/或应用的概念的术语和定义，以及最初在ISO技术结构中的其他地方开发的许多其他概念。除非另有说明，在每个定义中都包括对定义该概念的ISO 15686的特定部分以及定义所源自的国际标准的交叉引用。

ISO/TR 15686-11:2014 provides a compilation of the terms and definitions of concepts that have been standardized to establish a vocabulary applicable to the aspects of both the construction and use of a building or civil engineering works and the service life planning of the same, as applied in the documents of ISO/TC 59/SC 14 Design life. ISO/TR 15686-11:2014 consists of terms and definitions included in the different parts of ISO 15686, along with their abbreviated designations, where applicable. The terms and definitions of concepts listed in Clause 3, along with any relevant abbreviated designations, include those representing concepts that have been standardized and/or applied within SC 14, as well as a number of others that have originally been developed elsewhere within the ISO technical structure. A cross reference is included in each of the definitions to the specific part of ISO 15686 in which the concept is defined, as well as to the International Standard (s) from where the definition originates, unless otherwise noted.