1.1 基于统一格式II格式组织建筑数据，在分类中建立 E1557 ，并根据测量应用的级别（行业、总工作或建筑元素），JPM在三个级别测量建筑生产力:任务、项目和行业（如所示） 图1 ). 通过将使用的工时与CPIP进行比较，JPM允许对已建立的建筑构件进行统一测量（根据UNIFORMAT II格式）。本实践通过将劳动力使用与CPIP进行比较，建立了测量施工作业生产率的过程。 图1 衡量行业、项目和任务级别的生产力 1.2 JPM测量施工作业中安装过程的劳动生产率。 2. 1.3 利用统计过程控制（SPC）和工业工程的要素，通过执行安装的劳动力的输入来测量CPIP。 1.4 JPM考虑了在作业的任何给定点安装的难度。 1.5 JPM使用趋势监测评估相对生产力变化。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 JPM产生两个测量值:建筑生产率和生产率。 5.1.1 JPM通过比较CPIP和施工进度中经过的时间来衡量整体生产率。 5.1.2 JPM通过比较劳动力使用情况和参考点来衡量整体工作生产率。 5.2 JPM发布施工预警信号。 5.2.1 JPM从生产力参考点识别生产力偏差，表现为生产力的任何收益或损失，以及表明特殊原因的异常。 5.2.2 JPM测量单个建筑元素的生产率变化（根据分类中组织建筑数据的UNIFORMAT II格式） E1557 )采用与整体工作生产率测量相同的方法。 5.2.3 JPM测量劳动力使用的持续变化。 5.3 JPM通过以下方式测量施工中使用的劳动力的生产率: 5.3.1 直接或间接负责劳动力生产力及其使用的任何承包商或施工经理。 5.3.2 任何承包商或施工经理在施工作业的任何部分进行自我履行。 5.3.3 监督施工作业任何部分劳动表现的任何承包商或施工经理。

1.1 Based on the UNIFORMAT II format for organizing building data, established in Classification E1557 , and depending on the level where measurement is applied (industry, total job, or building element), JPM measures construction productivity at three levels: task, project, and industry (shown in Fig. 1 ). By comparing labor hours used against CPIP, JPM allows for unified measurement of established building elements (according to the UNIFORMAT II format. This practice establishes a process for measuring construction job productivity by comparing labor usage to CPIP. FIG. 1 Measurement of Productivity at the Industry, Project, and Task Level 1.2 JPM measures labor productivity of the installation processes on a construction job. 2 1.3 CPIP is measured with input from the labor performing the installation, utilizing elements of statistical process control (SPC) and industrial engineering. 1.4 JPM takes into account the difficulty of installation at any given point on a job. 1.5 JPM evaluates relative productivity changes using trend monitoring. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 JPM produces two measurements: construction production rate and productivity. 5.1.1 JPM measures the overall production rate by comparing CPIP to the time elapsed in the construction schedule. 5.1.2 JPM measures overall job productivity through a comparison of labor usage to a reference point. 5.2 JPM issues early warning signals for construction. 5.2.1 JPM identifies productivity deviations in the form of any gains or losses in productivity, and anomalies indicating a special cause, from the productivity reference point. 5.2.2 JPM measures the productivity changes to individual building elements (according to the UNIFORMAT II format for organizing building data, in Classification E1557 ) with the same methodology used for overall job productivity measurement. 5.2.3 JPM measures ongoing changes in labor usage. 5.3 JPM measures productivity wherever the labor is used in construction by: 5.3.1 Any contractor or construction manager directly or indirectly responsible for the productivity of the labor and its usage. 5.3.2 Any contractor or construction manager conducting self performance on any portion of the construction job. 5.3.3 Any contractor or construction manager supervising labor performance on any portion of a construction job.