MIDS／BUAA中模式演进的实现

The Implementation of Schema Evolution in MIDS/BUAA

摘要: 本文是《ＭＩＤＳ／ＢＵＡＡ中的模式演进》［１］一文的续篇。文中描述了ＭＩＤＳ／ＢＵＡＡ模式演进操作的语义，探讨了模式的变化传播对实例及方法（和应用）的影响，论述了演进操作的完全性和有效性，阐述了ＭＩＤＳ／ＢＵＡＡ模式演进的实现途径。

Abstract: In this paper, the semantics of all schema operations of MIDS/BUAA, impacts of schema change propagation on existing instances and methods, the completeness and soundness of MIDS/BUAA schema operations, and implementation approach to the schema evolution of MIDS/BUAA are respectively discussed.