Discussion of electronic performance support systems (EPSS) focuses on an application within the domain of quantitative research methods as taught in a university psychology course. Describes the design and implementation of the system and outlines results of an evaluative study of the EPSS. (Author/LRW)

Of 45 adults over 50 who had computer experience, 44% reported difficulty reading screens, 53% were frustrated by complex software, and 27% had difficulty with the mouse. The physical characteristics of aging should be considered in designing special software features such as dynamic text resizing and menu buttons instead of pull-down menus. (SK)

Discusses the design and implementation of database management systems for low-organized and natural language text on small computers. Emphasis is on the efficient storage and access of primary (text) and secondary (dictionary) files. Possible expansions to the system to increase its use in linguistic research are considered. (six references)…

Discussion of natural language processing components of information retrieval systems focuses on a full-text system called TOPIC (Text-Oriented Procedures for Information Management and Condensation of Expository Texts) that is based on text parsing. Highlights include design rationales for semantic parsing; text coherence; and a semantic model of…

Discusses the development of hypertext and describes hypertext systems currently available for microcomputers. The use of hypertext in instructional materials and in job aids is discussed, an example of a system designed for self-management tasks is given, and the need to focus on human performance improvement is emphasized. (14 references) (LRW)

This reprint from "Designing the User Interface: Strategies for Effective Human-Computer Interaction" (Shneiderman) discusses the impact of computers on individuals and society. Highlights include individual opportunities for learning, entertainment, and cooperation through networking; problems with the use of computer systems; and the…

Analyzes requirements for text-based online conferencing through the use of a minimal prototype. Topics discussed include prototyping with a minimal system; text-based communication; the system as a message passer versus the system as a shared data structure; and three exercises that showed how users worked with the prototype. (Contains 61…

Describes how, when Intel Corporation undertook development of a line of desktop conferencing products, the company's writers assumed active roles in the process, conducting usability testing, identifying usability issues for the engineering teams, testing products, and using their findings in the design of both online and hard copy help systems,…

Discusses the need to expand spatial analysis based on Geographic Information Systems (GIS) and display methods to encompass group decision-making processes. Descriptions of enhancements and additions to software that will enable GIS technology to be used by groups are included. Issues highlighted include implementation and design. (54 references)…

Discusses the use of expert systems for the development of instructional design and recommends instead the cognitive approach of an instructional design workbench. Distinctions between expert systems and advisory systems are examined, the problem-solving process of instructional design is described, and design requirements for an instructional…

Offers principles for purchasing a new personal computer, and discusses matching principles with needs. (SR)

Discussion of the use of microcomputers in political campaigns focuses on the Jesse Jackson presidential primary campaign in New York State in 1988. User needs analysis is described, guidelines for the organization of a campaign information system are suggested, and the use of microcomputers for voter targeting is described. (LRW)

This issue contains nine articles that provide an overview of trends and research in parallel information retrieval. Topics discussed include network design for text searching; the Connection Machine System; PThomas, an adaptive information retrieval system on the Connection Machine; algorithms for document clustering; and system architecture for…

Discussion of context focuses on the various contexts surrounding the design and use of intelligent tutoring systems and proposes an initial framework of contexts by classifying them into three major groupings: interactional; environmental, including classifications of knowledge and social environment; and objectival contexts. (Author/LRW)

Describes a system for using the World Wide Web to distribute computational tasks to multiple hosts on the Web that is written in Java programming language. Describes the programs written to carry out the load distribution, the structure of a "distriblet" class, and experiences in using this system. (Author/LRW)