一、定义数字数据库常常称为源数据库、非文献目录数据库、数据文档、数据仓库以及事实仓库,以便同传统的文献目录数据库相区别。众所周知,文献目录数据库通常用于查询。这些数据库是针对文献中的某篇文献,或对某人、某机构来进行检索的。显然还有一些查阅型数据库不提供文献引文检索。这类数据库例子之一是 SSIE(Smithsonian 科学信息交换)数据库。该数据库概括了研究项目内容,提供研究者名字、研究所或发起机构、甚至还有研究经费的数目。查阅型数据库经常被看作是数字数据库范畴的一部分。第二类重要的数据库——源数据库或数 I. Definitions Digital databases are often referred to as source databases, non-bibliographic databases, data documents, data warehouses and fact stores to distinguish them from traditional bibliographic databases. As we all know, the bibliographic database is usually used for querying. These databases are directed against a particular article in the literature or on someone, an institution. Obviously there are some access databases that do not provide citation retrieval. An example of such a database is the SSIE (Smithsonian Scientific Information Exchange) database. The database outlines the research project, providing the name of the researcher, institute or sponsor, and even the number of research funding. Lookup databases are often seen as part of the category of digital databases. The second type of important database - the source database or number