系统分析现场图书采购查重的三种实现方式,即传统现场图书采购查重方式,备份数据库查重方式和远程登录系统查重方式,并指出每种方式存在的优点、缺点。在进行比较与分析的基础上,探讨现场图书采购查重方式的发展趋势,认为查重设备将向体积小、质量轻、功能多的掌上计算机方向发展。 Systematic analysis of on-site book procurement check three ways to achieve, that is, the traditional on-site book procurement check mode, check the backup database and remote login system to check the way, and pointed out that each way there are advantages and disadvantages. On the basis of comparison and analysis, this paper discusses the development trend of on-site book procurement check-up methods, and considers that the check-up equipment will develop toward the palm computer with small size, light weight and multi-function.