对配电网的全球性能进行分析对于满足供水公司的许多需求至关重要。模型是有用的，前提是它们能够维护更新、详细和可靠的信息，例如地理信息系统可以保证这一点。地理信息系统和模型之间的接口是必要的，可以捕获所需信息，并将其从存储和更新的位置传输到用于计算的位置。一个人拥有一个详细的模型这一简单事实不足以成为投入大量精力收集所需数据的理由。为了实现这种模型，还必须有一个先前存在的或并行存在的GIS。由Canal de Isabel II为马德里社区开发的接口程序目前正在运行。

Analyses of the global performance of distribution networks are essential in supporting many of the needs of water supply companies. Models are useful providing they maintain updated, detailed and reliable information, as is guaranteed, for example, by the Geographic Information Systems. Interfaces between GIS and Models are necessary to capture and transfer the required information from the place where it is stored and updated to the place where it is used for calculation. The simple fact that one has a detailed model is not reason enough to invest the great amount of effort necessary to collect the required data. It is essential that there also be a previous or parallel existence of a GIS to implement this kind of model. The interface program developed by Canal de Isabel II for the Community of Madrid, is currently in operation.