id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-14456	Richardson, John	Toward an Expert System for Reference Service: A Research Agenda for the 1990s	1989	18	.pdf	application/pdf	11103	631	58	JUSTIFICATION Hypotheses of justification for work on expert systems posited until now address the economic or technological reasons for proceeding with the development of par- ticular systems.7 An expert system in ref- erence is desirable primarily because it can preserve the corporate memory within reference departments and can increase the individual's success in answering questions. Few individuals outside univer- sity laboratories and AI-specific compan- ies are able to create expert systems from scratch, and thus vendors offer develop- ment tools, variously known as shells, in- ference engines, framework, and struc- tures, that allow users to test the waters without investing hundreds of thousands of dollars in custom development.	cache/crl-14456.pdf	txt/crl-14456.txt