关键词: 动态企业资源计划, 持久对象, 模型-视图-控制器

Abstract: With the development of enterprise management, the dynamic Enterprise Resource Planning (ERP) software system is becoming into a hotspot. The dynamic persistent data, which are the basis of dynamic ERP, are studied. First, from the viewpoint of data structure，the persistent data are divided into the generalized table structure and generalized recursion structure. Then the design thought that persistent objects are constructed on the basis of the abstract data model is brought out. Finally a set of reusable persistent data access components is realized, which proved the feasibility of the thought that an abstract data model component is firstly constructed and bound dynamically with the concrete physical storage structure lately in the deployment phase. Through the study on the dynamic of persistent data, the problem of the structure of persistent objects and their uncertainty is solved, which enforces the flexibility of ERP systems.

Key words: dynamic ERP, persistent objects, model－view－controller