In the following, Orange County Public Library's earlier reports on its BIBLOS system are updated. Book catalog and circulation control modules are detailed, development and operation costs documented, and a cost comparison for acquisitions cited.
A description of the circulation system which the Health Sciences Library at the State University of New York at Buffalo has been using since October 1970. Features of the system include automatic production of overdue, fine, and billing notices; notices for call-in of requested books; and book availability notices. Remote operation and processing on the IBM 360/40 and CDC 6400 computer are accomplished via the Administrative Terminal System (ATS) and Terminal Job Entry (TJE). The system provides information for management of the collection and improved service to the user.
Two search keys (4,5 and 3,3) are analyzed using a probability formula on a bibliographic file of 857,725 records. Assuming random requests by record permits the creation of a predictive model which more closely approximates the actual behavior of a search and retrieval system as determined by a usage survey.
Northwestern University Library's on-line circulation system has resulted in dramatic changes in practices and procedures in the Circulation Services Section. After a hectic period of implementation, the staff soon began to adjust to the system. Over the past year and a half, they have devised ways to use the system to maximum advantage, so that manual and machine systems now mesh in close harmony. Freed from time-consuming clerical chores, the staff have been challenged to use their released time to best advantage, with the result that the "service" in "Circulation Services" is more closer to being a reality.
This paper presents a case study of the automation of acquisitions functions at Parkland College. This system, utilizing batch processing, demonstrates that small libraries can develop and support large-scale automated systems at a reasonable cost. In operation since September 1971, it provides machine-generated purchase orders, multiple order cards, budget statements, overdue notices to vendors, and many cataloging by-products. The entire collection, print and nonprint, of the Learning Resource Center is being accumulated gradually into a machine-readable data base.