...Maryellen Allen Usability testing of Web interfaces for virtual libraries is a crucial factor in the continuing development and improvement of the user interface. In 1999, the University of South Florida Libraries decided to embark on a usability study to coincide with the rollout of a new...

... uses all NLP techniques, and that they also vary from one IRS to another. Recently the number of full‐text (read: natural language) documents stored in databases has increased dramatically. At the front end of a system is its interface, which “connects” the system to its user, whose main way...

... is defined as the percentage of technically relevant retrieved documents out of the total number of retrieved documents. In this paper we examine the technical precision of all 20 queries and show that the technical precision of both search interfaces is very high, contrary to common belief. The notion...

...Anne L. Barker This paper compares and contrasts online searching on DataStar, a major European host now owned by The Dialog Corporation, using the “Classic” command language, with access via the more recent Web interface. DataStar, established in 1981, was one of the first online hosts to offer...