This study investigates the relationships between the use of a zoom tool, the terms they supply to describe the image, and the type of image being viewed. Participants were assigned to two groups, one with access to the tool and one without, and were asked to supply terms to describe forty images, divided into four categories: landscape, portrait,…

Intelligent Tutoring Systems (ITSs) that employ a model-tracing methodology have consistently shown their effectiveness. However, what evidently makes these tutors effective, the cognitive model embedded within them, has traditionally been difficult to create, requiring great expertise and time, both of which come at a cost. Furthermore, an…

Describes performer-centric interface design and explains a model-based approach for conducting performer-centric analysis and design. Highlights include design methodology, including cognitive task analysis; creating task scenarios; creating the presentation model; creating storyboards; proof of concept screens; object models and icons;…

An adaptation technique of multimodal interfaces based on a cognitive modeling of users is presented in this paper. The adaptation process tries to select a combination of modalities that best fits the cognitive profile of each user. This profile contains indicators of cognitive abilities and styles. This paper focuses on output modalities and…

Contains an excerpt from the author's landmark work about the way lay people think about technology and the language they use to express their thoughts. Discusses some of the fundamental differences between common conceptualizations of the way computers work and the way other machines and mechanisms work. (TB)

This article compares cognitive processing between natural and artificial language (AL) use and utilizes psycholinguistics for building a cognitive model of the AL user. Discussion covers observations concerning common ground, optimal design, collaborative processes, generalization, and incremental parallel production. Inquiries like this may lead…

This survey of the research into user interface design and its impact on the development of hypermedia users' mental models discusses various design issues including the functionality of the system, system purpose, differences in user background, and system usability. (Author/AEF)

Interacting cognitive subsystems (ICS) is proposed as a unified cognitive theory that can be used as the basis for representations in human-computer interaction, and two approaches based on the theory are described: one entails the description of cognitive task models, and the other entails the production of less complete diagrammatic notations.…

This document presents a theoretical approach and a methodology for analyzing data from students interacting with and learning from hypermedia systems. Interactions are mutually influenced by individual students' goals and strategies and the actions supported by the interface of the learning environment. The approach is illustrated by modelling…

Work in the design and construction of virtual environments (VEs) is described from the standpoint of semiotic theory. It is advocated that well-constructed visual worlds can create in a person the feelings and cognitions that arise from being in the natural world and that interactions with computer-constructed VEs are mediated through signs. The…

Examines how metacognitive theory can be integrated into the design of computer-based learning environments through the user interface. Highlights include interface design, metacognition and cognitive processes, using metaphors, user access to information, visual feedback, navigational tools, interaction styles, menus, and self-evaluation methods.…

This study of 40 undergraduates examined whether aiding as cognitive support (i.e., offering computer users knowledge they are missing) can supplement lack of knowledge and capacity under tasks with high mental loading, such as dealing with irregularities in process control. Users of a railway traffic control simulator dealt better and faster with…

Research in human-computer interaction is evolving a user-centered methodology for system design and instruction that focuses on integrating affective and cognitive user variables to increase productivity, creativity, and human growth. Discussion includes the survey approach, the experimental-ethnographic approach; theory-building; and the future…

This study examined the effects of the number of links and the granularity of nodes on undergraduate and graduate students' information searching, learning performance, and attitude toward hypermedia systems. Discusses the relationship between the number of links and cognitive overhead an/or disorientation as well as implications for Web-based…