http://www.ariadne.ac.uk/authors/panayiotis-periorellis/ Recent content in Panayiotis Periorellis on Ariadne Hugo -- gohugo.io en-gb Fri, 18 Sep 1998 23:00:00 +0000 http://www.ariadne.ac.uk/issue/17/verity/ Fri, 18 Sep 1998 23:00:00 +0000 http://www.ariadne.ac.uk/issue/17/verity/ AbstractThe majority of library enquiry systems usually consist of a non-graphical interface linked to a library catalogue (Online Public Access Catalog, or OPAC). Graphics, animation and sound are usually sacrificed to speed up the enquiry process. Some interfaces support the Hypertext Transfer Protocol (http) and can therefore be accessed on the World Wide Web (Web). Although they allow access using a number of keywords (author, subject, title, etc.), they do not provide any help on how the catalogues are accessed, how to structure or refine a query or how to evaluate the responses.