根据系统规划和设计综合方法的预期目标，圣安东尼奥市水务局意识到需要定制设计客户服务和工单系统。他们尤其需要能够轻松与SCADA系统和计划中的GIS/AM/FM系统接口的软件。他们认为，基于第四代关系数据库（RDB）的系统最适合实现这些目标。编制了一份详细的要求清单，所有受影响的作业区域都参与其中。根据该清单，得出结论认为，市水务局在信息系统部门的人员配备水平方面存在局限性，并且工作人员不具备必要的RDB技能。聘请了一家咨询公司协助设计、开发和实施新的客户服务和工单系统，名为“水账户通用系统”（WAVS）。

In light of a desired objective to an integrated approach to system planning and design, the City Water Board of San Antonio, became aware of the need to custom-design a Customer Service and Work Order System. They particularly needed software which would easily interface with their SCADA system and their planned GIS/AM/FM system. They determined that a system based on a fourth-generation Relational Database (RDB) would best serve these objectives. A detailed list of requirements with full participation from all affected areas of operation was prepared. Based on the list, it was concluded that the City Water Board had limitations in the Information Systems Department staffing level, and that the staff did not have the requisite RDB skills. A consultant firm was hired to assist in the design, development and implementation of the new Customer Service and Work Order System, named the Water Accounts Versatile System or WAVS.