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Internet上存在着众多的Z39.50服务器,它们大都和图书馆等文献信息服务机构的信息数据库相连,为用户提供联机检索服务。目前Web浏览器还不支持Z39.50协议,检索这些服务器需要Z39.50客户系统。鉴于国内的Z39.50客户系统还不多见,该文从不同角度对Z39.50客户的特征和部分产品进行比较,以为图书馆选择相关产品提供参考。
There are a large number of Z39.50 servers on the Internet. Most of them are connected with the information database of literature and information service agencies, such as libraries, to provide users with on-line retrieval services. The current Web browser does not yet support the Z39.50 protocol and retrieving these servers requires the Z39.50 client system. In view of the rare domestic Z39.50 client system, this article compares the characteristics of Z39.50 customers and some products from different angles to provide a reference for the library to choose the related products.