网络分析硬件和软件提供了处理大型压力-流量方程系统的能力，图形技术允许基于水力模拟充分理解系统反应。但是，公用事业公司如何收集和输入系统中每个管道和非管道设施的必要数据，并正确分配高程和需求？这篇论文描述了加利福尼亚州圣何塞市是如何进行的。图中给出了网络模型的制定流程图，本文的大部分内容解释了该过程。详细讨论了设施、坐标系、需求、高程、模型验证和效益。

Network analysis hardware and software provide ability to handle large systems of pressure-flow equations, graphic techniques allow full comprehension of system reaction based on hydraulic simulation. But how can a utility collect and enter the necessary data for every pipe and nonpipe facility in the system and assign elevations and demands correctly? This paper describes how the City of San Jose, California, went about it. A figure gives a network model formulation flowchart, and the bulk of the article explains the process. Facilities, coordinate system, demands, elevations, verification of the model, and benefits are discussed in some detail.