Electronic performance support systems (EPSSs) are the software programs commonly used in commercial environments since the early 1990s. These software programs are generally called performance-based systems and focus on the complete job rather than providing individual development. For that reason, the usage of these systems in learning…

Research on cognitive modeling of information search and Web navigation emphasizes the importance of "information scent" (the relevance of semantic cues such as link labels and headings to a reader's goal; Pirolli & Card, 1999). This article shows that not only semantic but also structural knowledge is involved in navigating the Web…

Analyzes interfaces supporting spoken, pen-based, and multimodal input for their effectiveness in interacting with interactive map systems. Results identified performance difficulties with speech-only map interactions that declined substantially when people could interact multimodally. Analyses also indicated that map displays can be structured to…

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)

Presents a new method to improve the performance of query processing in a spatial database. Experiments demonstrated that performance of database systems can be improved because both the number of objects accessed and number of objects requiring detailed inspection are much less than those in the previous approach. (AEF)

Presents a heuristic, attribute-based, noise-tolerant data mining program, HCV (Version 2.0) based on the newly-developed extension matrix approach. Outlines some techniques implemented in the HCV program for noise handling and discretization of continuous domains; an empirical comparison shows that rules generated by HCV are more compact than the…

Considers the problem of improving the performance of Web access by proposing a reconstruction of the internal link structure of a Web site to match quality of the pages with popularity of the pages. Provides a set of simple algorithms for local reorganization of a Web site, which results in improving users' access to quality pages in an easy and…

Examines potential solutions to the problem of personal computer cabling and configuration and serial port performance, namely "FireWire" (P1394) and "Universal Serial Bus" (USB). Discusses interface design, technical capabilities, user friendliness, compatibility, costs, and future perspectives. (AEF)

To support performance for an international audience of computer users, designers need to examine key elements of performance in relation to the design of systems. Discussion focuses on planning ahead for an international audience and preparing a design that keeps the performer, the process, and the information connected, resulting in optimal…

Discusses the development of Minerva, a command-and-control training simulator that uses a multimedia computer network to exercise senior decision makers in crisis management at the Metropolitan Police Service (London). Examines the learning environment, programs, performance reviews, training scenarios, and technology. (AEF)

A methodological framework for the delivery of knowledge, performance, and learning (KPL) systems is presented. The role of the KPL system is currently taken by learning management systems or learning and content management systems, and many of these systems facilitate the technical aspects of learning objects. However, they are still rooted in…