György Rózsa: Information: from claims to needs (Joint edition published by the Library of the Hungarian Academy of Sciences and the Kultura Hungarian Foreign Trading Company. Budapest, 1988)

I. The socio-professional aspects of the development of the scientific information with special regard to social sciences

61 Here are my arguments in support i Library services 1) SOURCE (complete) The source of knowledge has no (chronological, historical, linguistic, thematic) limits. 2) DIFFERENTIATION OF SERVICES (complete) The services can be differentiated, without any limitations, according to social standing, age, occupation, knowledge oflanguages, etc. 3) RECIPROCAL USE (yes) The library can be used unlimited. 4) RETROSPECTIVE RESEARCH (yes) Unlimited. 5) COST OF SERVICES (inexpensive) These are public services; the majority of services offered are free of charge. 6) SERVICES AND THE WAY OF LIVING (harmonious) The use of the services can be included harmoniously in anybody's way of life. is preliminary finding. The "viewdata" services 1) SOURCE (incomplete) The source is restricted, very limited as far as integral texts are concerned, and nil in respect of manuscripts, old books, rarities, etc. 2) DIFFERENTIATION OF SERVICES (incomplete) It is possible to differentiate services only relying on limited sources. 3) RECIPROCAL USE (no) Viewdata can be used only with great limitations (of sources). 4) RETROSPECTIVE RESEARCH (no) With limitations set by the input of sources. 5) THE COST OF SERVICES (more expensive) It appears that the cost of these services will be higher than that of libraries, in spite of the fall in prices due to "public relations" and to technical costs. 6) SERVICES AND THE WAY OF LIVING (harmonious) Harmonious inclusion is not without restrictions: those of the price of services.