Improvements in the coupling of SDI system output with document delivery systems

A brief review is given of approaches used to couple SDI system output to the supporting document delivery systems. A coupling system is described which has been implemented for the nine campuses of the University of California to automatically annotate citations retrieved from a central SDI service with location and call number information. Many of the computer-printed citations sent to each UC user are annotated to show the one or more library locations and call numbers for those serial titles on that user's campus. In the event that a cited title is not held on a user's campus, the citations are annotated to identify the nearest UC library that has that title. The location-code segment of the SDI system has been in operation since mid-1974 for over 1500 profiles, and five data bases, and for users on nine UC campuses. This is the first instance of this kind of coupling on a operational basis for a large, multifile, geographically dispersed multilibrary system.