utomated products, especially online catalogs, have become the norm in academic libraries. The online catalog is now a major resource utilized in the process of providing reference assistance to users and in providing assistance to library users operating in a self-service mode. Librarians and library users alike have adopted them enthusiastically. Although user enthusiasm and satisfaction with online catalogs are known to be high, individual libraries have more limited information on the role of the library catalog in library user success. To obtain a more comprehensive understanding of the role of the online catalog in user success, individual library studies must be designed to study both patrons who use the online catalog with reference assistance and those who use the catalog unassisted. Also, such studies must employ a variety of quantitative and qualitative datacollection methods and analyses and consider both librarian and patron perspectives concerning success.The purpose of this project is to explore how the online catalog contributes, or does not contribute, to patron success. This project, in using a variety of methodologies, also seeks a multifaceted view of the topic. Key questions that the project is designed to answer are: (1) Are students really getting appropriate assistance when using the online catalog? (2) What are the most common searching successes and failures observed for people using the online catalog without staff assistance? (3) How effectively is the online catalog used by librarians providing reference assistance compared to other sources-reference books, electronic and printed indexes? and (4) Are students able to find the material they located in the online catalog on the shelves-if not, why not?The paper briefly reviews relevant studies of online catalogs and reference success, and describes the methodology and results of three different online catalog studies: (1) the Reference Transaction Assessment Survey; (2) the online catalog study of unassisted users; and (3) the document availability study. Finally, the paper concludes by discussing the implications for reference practice,
LITERATURE REVIEW
Online Catalog StudiesMany studies have been conducted concerning the role of online catalogs in providing assistance to users in a selfservice mode. Jon Hufford observes that the most accurate studies of catalog use have been done through interviews with users when they are searching the catalog. This technique requires more time to gather data, but is likely to yield more precise and reliable information. A serious limitation of this method is that users might not behave in the same way as when they are unobserved.1 In line with this focus on users, Walt Crawford notes that much of the research has asked the wrong question. The question is not whether users can identify a given piece of information, but whether they got the information wanted, how quickly they got the information, and whether the process was satisfactory. However, user satisfaction as a measure is not without diffi...