The scholarly record, produced, distributed, and procured because of complex social values and by means of complex bureaucratic institutions, is now so large and continues to grow at such a pace that the task for identifying what should be purchased and retained for a particular library agency requires a highly abstract verbal model to explain.…

Part I presents an initial review of the literature pertinent to the research problem. The literature review has two divisions. In the first division, the previous works relating to systems analysis studies of libraries or information storage and retrieval systems are reviewed. The second division includes the review of literature pertinent to the…

A study investigated the relationship between the completeness of end users' mental models of an online system and their ability to use the system effectively. Although all of the study subjects were relatively successful, those with more complete mental models tended to have better search results than subjects with incomplete or poor mental…