management information systems;  Data window;  data sources;  Object-oriented

Aiming at the problem of a large number of dynamic reports in the development of information management system, using the DataWindow mode and database management mode in PowerBuilder (PB), an intelligent system that can be generated by users in any form of report is designed and developed, which can query and count any combination of multiple tables and fields, and provide support for internal data source query reports and external data source statistical reports. The reporting system has been successfully applied to the Beijing Family Planning Service and Management Information System.