摘要： IDEF1是IDEF方法的三大组成部分之一。由于IDEF1比较强调设计规范,因此它特别适用于信息种类繁多和结构复杂的数据库概念模型设计。本文作者对原 IDEF1方法作了研究,在此基础上对它作了必要的扩充(包括某些修改),从而弥补了原IDEF1的某些不足或缺陷。本文的目的是简要地介绍扩充后的IDEF1(简称EIDEF1)及其意义。

Abstract: IDEF-1 is one of the three important parts of IDEF method. As it places stress on the design rules. IDEF 1 is very suitable for designing the conceptual model of a data bese with many kinds of information and complex structure, The author has done some work on the original IDEF 1 and achieved some extensions, which may relax certain limitations imposed on it. The purpose of this paper is to introduce briefly the extended IDEF-l (EIDEF) and its significance.