元数据驱动的关系数据模型通用编辑系统

摘要

Against heavy workload、high cost and high coupling degree produced by the data editing in the management information system of traditional model, a set of metadata-driven framework for data model editing is proposed.Based on mete-data model described the application database, the framework could dynamically associate relations among tables to achieve data conversion between user interface and data tables.In addition, it could call some components, such as treeview, according to meta-data information.Practice in Daqing 0ilfield prove that data editing tools based on the framework will be able to lower the workload, save the cost and reduce coupling degree.%针对传统模式开发管理信息系统中的数据编辑部分所产生的工作量大,成本高,耦合度高的问题,提出了一套元数据驱动的数据编辑的框架模型.以描述应用数据库的元数据模型作为系统建立的基础,由此动态建立数据表的关联关系,实现数据表与用户界面的数据转换;编辑具体字段时,根据元数据信息调用诸如树形列表等构件.在大庆油田的实践表明,基于该框架模型的数据编辑工具的实现能够减少工作量、节约成本,降低耦合度.