本powerpoint演示文稿首先简要概述了从水源到水龙头优化水系统的必要性。安全用水伙伴关系（PSW）已经取得了相当大的进展 优化地表水供应。项目 目的是开发一种类似PSW的 配电系统自评估优化计划 用途广泛，具有易于衡量的标准和最少的资本 支出。介绍了优化金字塔，以及4109方法的概述，包括以下内容: 文献综述；效用问卷；专家工作组；起草优化标准（步骤1和2）；beta审查——第1部分由完整工作组进行审查，切实可行；beta审查——第2部分:各公用事业公司的详细审查/申请；专家研讨会；软件开发；以及最终的DOSAC文件。

This powerpoint presentation begins by providing a brief overview of the need for optimization of water systems from source to tap. Partnership for Safe Water (PSW) has made considerable progress with optimization of surface water supplies. The project objective was to develop a PSW-like distribution system self-assessment optimization program that is widely useful, with easily measurable criteria and minimal capital expenditures. The Optimization Pyramid is presented, along with an overview of the 4109 approach that included the following: literature review; utility questionnaire; expert workgroups; draft optimization criteria (Steps 1&2); beta review - Part 1 review by full workgroup, practical and feasible; beta review - Part 2 detailed review/application by individual utilities; expert workshop; software development; and, final DOSAC document.