PowerDesignerr是Sybase公司的CASE工具集，使用它可以方便地对管理信息系统进行分析设计，他几乎包括了数据库模型设计的全过程。本教程详细介绍了使用该程序进行系统分析与建模的方式。-PowerDesignerr is Sybase' s CASE tool set, use it to facilitate the management of information systems analysis and design, he includes almost the entire process of designing the database model. This tutorial details the use of this program for system analysis and modeling approach.