ISO 4157的本部分规定了室内、区域、空间和空隙的标识系统要求 按房间标识符分类的建筑物。它引入了一个新的命名概念，用于识别项目中的房间 在其整个生命周期内，即概念、编程、规划、安装、维护、改造和 拆除阶段。

This part of ISO 4157 establishes requirements for designation systems for rooms, areas, spaces, and voids in buildings by room identifiers. It introduces a new designation concept intended for identification of rooms in a project throughout its life cycle, i.e. the conception, programming, planning, erection, maintenance, remodelling and demolition phases.