The purpose of these guidelines is to assist librarians in providing students and faculty with appropriate information about computerized sources of information, particularly national online and compact disc (CD-ROM) databases. The guidelines offer ideas for brief, medium-length, and long presentations on the use of online searches, including…

This report provides a list of 26,654 Level 3 documents, i.e., documents that have been announced in Resources in Education (RIE) which the authors have not granted ERIC permission to reproduce in either microfiche (Level 2) or microfiche or paper copy (Level 1). These documents are neither included in the ERIC Microfiche Collection nor available…

This overview of CD-ROM (Compact Disk-Read Only Memory) technology covers technical specifications as well as applications of special interest to teachers, school administrators, and librarians. Materials available on CD-ROM disks are described, including a variety of reference works, and a directory of publishers/producers is provided. Issues of…

Applies a prefix trie index, or trie hashing, to the problem of providing fast search times, fast load times, and fast update properties in a bibliographic or full-text retrieval system with inverted files. Statistics are given for a test database consisting of an online catalog at the University of Western Ontario. (Author/LRW)

Reviews selected research on the performance of bibliographic and full-text databases. A mathematical model for clarification of the relationship between user behavior and the performance measures of recall and precision is presented. (five references) (MES)

Describes a new signature file method, called the multiorganizational scheme, for accessing information from large databases containing both formatted and free-text data. Implementation issues are discussed, and computational results based on a mathematical model are presented, as well as results using a library database. (43 references) (MES)

Describes an experiment that compared the performance of online and print tools in answering two types of ready reference questions: conceptual questions (requests for citations) and factual questions. The results show that online tools perform best for conceptual questions, but simple factual questions can be answered more quickly using print…

The first of two papers discusses natural language searching as a user performance enhancement tool, focusing on artificial intelligence applications for information retrieval and problems with natural language processing. The second presents a conceptual framework for further development and future design of front ends to online bibliographic…

Discusses methods and content of library instruction for CD-ROM searching in terms of the needs of end-users. Instructional methods explored include staff instruction, structured instruction, database documentation, tutorials and help screens, and floaters. Suggestions for effective instruction in transfer of skills, database content, database…

Offers 20 multiple choice questions to test the reader's knowledge of characteristics of the ERIC online database. The levels of expertise indicated by scores obtained on the quiz are given and suggested further readings are provided. (CLB)

Describes the software architecture and application of SABRE (Semi-Automated Bibliographic Environment), which is one of the first products to provide a semi-automatic environment for relevancy ranking of citations obtained from searches of bibliographic databases. Features designed to meet the review, categorization, culling, and reporting needs…

Describes an expert system that can identify documents erroneously categorized by indexers working within a prior category scheme. The discussion covers the results of a test of the system and its implications for automatic indexing systems. (14 references) (CLB)

Discusses various categories of software that can be applied to the development of in-house databases on microcomputers, and describes the use of a general purpose package with a procedural language to design a small indexing system called Revelation. The description covers data storage and maintenance, database design, file searching, and system…

Examines how online versions of databases vary on different systems. Differences are grouped into three categories: obvious differences, including easily available information such as updating, dates covered, and price; database choice, including subfile structure, field structure, and content; and system choice, including support and system…

Discusses the actual and potential impact of local shared automated library systems on the development of a comprehensive nationwide bibliographic database (NBD). Shared local automated systems are described; four local shared automated system models are compared; and the current interface between local shared automated library systems and the NBD…