Two basic data processing concepts are described: data elements (consisting of bits, bytes, fields, records, and files) and binary characters (standards, hex value, and extended character sets--Greek letters, superscripts, and subscripts). Use of machine-readable data in the OCLC-MARC database is noted. (EJS)

This article offers a working definition and general comments on the purchasing of library turnkey systems (package including hardware and software required to accomplish a clearly defined task). Turnkey versus customized, selecting a turnkey system, request for proposal, contracting with vendors, and post installation evaluation are discussed.…

This symposium on printed documentation covers (1) Tacoma Public Library's documentation (Lare Mischo); (2) characteristics of bad documentation (Linda Bills); (3) GEAC manuals (Joe Matthews); (4) Personal Bibliographic Software manuals (Victor Rosenberg); (5) DIALOG documentation (Barbara E. Anderson); (6) documentation problems and improvements…

Discusses the need for standards allowing computer-to-computer communication and gives examples of technical issues. The seven-layer framework of the Open Systems Interconnection (OSI) Reference Model is explained and illustrated. Sidebars feature public data networks and Recommendation X.25, OSI standards, OSI layer functions, and a glossary.…

Enumerates principal management objectives of database management systems (data independence, quality, security, multiuser access, central control) and criteria for comparison (response time, size, flexibility, other features). Conventional database management systems, relational databases, and database machines used for backend processing are…

Seven vendors express their views on the importance of standards to facilitate the linkage of in-house and external computer systems. The subjects addressed include integrated versus linked systems, national and international standards efforts, and the involvement of librarians in the development of standards. (EM)

Vendors implementing Standard Network Interconnection (SNI) protocols for computer to computer communications can now test their implementation against the Linked Systems Project/SNI Test Facility developed by Library of Congress. The facility is intended to verify correct functioning of SNI protocols for Open System Interconnection (OSI) layers.…

The MetaScholar Initiative is a collaborative endeavor to explore the feasibility and utility of scholarly portal services developed in conjunction with Open Archives Initiative metadata harvesting technologies. This article describes two projects that the MetaScholar Initiative comprises, as well as accomplishments and findings to date. (AEF)

Benefits of the proposed Common Command Language for online interactive information retrieval, which has been developed by the National Information Standards Organization, are discussed, as are remaining problems in cross-system searching. A summary of the language showing the functions performed by the various commands is included. (MES)

Describes microcomputer-based automation for library applications, noting use of inexpensive (sometimes free) existing programs and software such as dBase II to write or modify programs to meet specific needs. Programs written for the IBM PC-XT to produce serials lists and analyze serials collections are included. Five references are listed. (EJS)

Compares two major types of electronic mail systems--node-to-node networks (messages are sent directly from one terminal to another with functions handled locally at each node) and computer based message systems (terminals communicate directly with host computer using access to functions of large computer). Information sources are noted. (EJS)

Summary of developments that have occurred in the past year in online news-retrieval services highlights the demise of the New York Times Information Service, Information Access Corporation's database additions and enhancements, full-text services, specialized databases with current events content, and microcomputer access to news. Twelve…

Discussion of using vendors for retrospective conversion of library catalogs rather than in-house projects highlights reasons to consider vendors, four conversion methodologies, and vendor selection criteria (database, non-matches, local data, accuracy, charging, schedule, product delivery time, local system compatibility, MARC format, impact on…

Characteristics and advantages of database machines are summarized and their applications to library functions are described. The ability to attach multiple hosts to the same database and flexibility in choosing operating and database management systems for different functions without loss of access to common database are noted. (EJS)

Examines six steps inherent to development of in-house automated library system: (1) problem definition, (2) requirement specifications, (3) analysis of alternatives and solutions, (4, 5) design and implementation of hardware and software, and (6) evaluation. Practical method for comparing and weighting options is illustrated and explained. A…