本powerpoint演示文稿的重点是 配电系统管网，包括以下各项: 项目中所需的详细信息类型和级别 水力模型和水力模型的影响 模型维护工作的结构； 属性和拓扑特征，以及 数据更新程序应包括在 地理信息系统允许与客户进行经济高效的协调 水力模型；和 可用于执行成本效益评估的工具 更新。提供了三个示例，包括以下内容:示例1- 骨架化模型 2001年模型的2008年更新（AutoCad Base）；示例2-简化/骨架化模型 2008年更新2005年模型（GIS库）；示例3——所有管道模型 地理信息系统与几何网络。陈述建议和结论包括以下内容: 开发几何网络并实现拓扑规则 进入地理信息系统； 建立一个过程，在该过程中识别错误 建模过程在中报告并更正 地理信息系统； 在GIS中添加日期戳，以便进行最新编辑/输入； 现有现成的建模软件维护工具 可以产生功能强大、经济高效的模型维护 策略；和 所有与GIS具有一对一关系的管道模型 预计最有利于模型维护。

The focus of this powerpoint presentation is on a distribution system piping network, including the following: the type and level of detail needed in the hydraulic model, and impact of the hydraulic model structure on model maintenance efforts; attributes and topology features, and data update procedures that should be included in the GIS to allow cost-effective coordination with hydraulic modeling; and, tools that are available to perform cost-effective updates. Three examples are provided and include the following: Example 1 - Skeletonized Model 2008 update of 2001 model (AutoCad Base); Example 2 - Reduced/Skeletonized Model 2008 Update of 2005 Model (GIS Base); and, Example 3 - All-pipes Model GIS with Geometric Network. Presentation recommendations and conclusions include the following: develop geometric network and implement topology rules into GIS; establish a process whereby errors identified during the modeling process are reported back to, and corrected, in the GIS; include a date stamp in GIS for latest edit/entry; existing off-the-shelf modeling software maintenance tools can yield powerful, cost effective model maintenance strategies; and, all-pipes models with one-to-one relationship to GIS are expected to best facilitate model maintenance.