This paper presents searching approaches and user interface capabilities of DUO, an Online Public Access Catalogue (OPAC) designed to permit the users of three Universities of the Northeast of Italy different subject searching accesses to the co-operative multi-disciplines library catalogue database.
The co-operative catalogue database is managed by one of the software systems developed under the italian national project for library automation: the SBN project. Since the SBN database has not been designed to be efficiently accessed for end-user searches, the DUO database has been designed to avoid duplication of the SBN database data and to be usable for making efficient subjects accesses to the catalogue documents. The DUO design choices are presented, in particular the main choice of designing a "virtual" document that corresponds to each SBN document and that has unstructured data usable for subject search purposes.
The paper presents a new kind of user-OPAC dialogue that makes available to the user different search approaches and on-line dictionaries. In particular the user during the interaction with the search tool can represent his information needs with the support of interface capabilities that are based on retrieval path history, and words and codes on-line dictionaries.
DUO is the first Italian OPAC that has been made openly available to users of universities and research institutions. For this reason, it is also the first time that OPAC log data is going to be collected in Italy. This work mainly intends to make a modern OPAC available to the users of a SBN catalogue database, but it is going to permit also to build up a knowledge on OPAC usage in Italy.
本文介绍了DUO的搜索方法和用户界面功能,DUO是一种在线公共访问目录(OPAC),旨在允许意大利东北三所大学的用户以不同的主题搜索对合作多学科图书馆目录的访问权限数据库。 P>
合作目录数据库由在意大利国家图书馆自动化项目SBN项目下开发的一种软件系统管理。由于尚未将SBN数据库设计为可有效访问以进行最终用户搜索,因此已将DUO数据库设计为避免了SBN数据库数据的重复,并且可用于使主题有效地访问目录文档。介绍了DUO的设计选择,特别是设计与每个SBN文档相对应且具有可用于主题搜索目的的非结构化数据的“虚拟”文档的主要选择。 P>
本文介绍了一种新型的用户-OPAC对话,可为用户提供不同的搜索方法和在线词典。尤其是,在与搜索工具进行交互的过程中,用户可以借助基于检索路径历史以及单词和代码在线词典的界面功能来表示其信息需求。 P>
DUO是第一个向大学和研究机构的用户开放的意大利OPAC。因此,这也是意大利第一次收集OPAC日志数据。这项工作的主要目的是为SBN目录数据库的用户提供一个现代的OPAC,但它也将允许在意大利建立有关OPAC使用的知识。 P>
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