一、前言计算机的迅猛发展造就了一个高度信息化的社会。当今,知识和信息的传播逐步呈现为数字化和网络化。这无疑对社会经济和科学技术的发展起着促进作用。由此,在人们从事的政治、经济、生产和科研等领域的实践活动中产生了大量的与传统的纸质档案完全不同的电子档案。 I. Introduction The rapid development of computers has created a highly information-oriented society. Nowadays, the dissemination of knowledge and information is gradually presented as digitization and networking. This will undoubtedly promote the development of social economy and science and technology. As a result, a great deal of electronic files that are totally different from the traditional paper files have been produced in the practical activities of people in such fields as politics, economy, production and scientific research.