Abstracts » Business

Duration estimates and users' preferences in human-computer interaction

Article Abstract:

The duration estimates of intervals during which a subject had to wait for the computer's response are similar for all the static displays on computers, among individuals. A direct relation exists between the rate of changes and estimates in dynamic computer displays. Faster rates increase the duration estimates and the slow-changing graphic displays have the shortest estimate duration. The individuals prefer epigrams, cumulative graphic displays, and slower blink rates to static displays. Ratings for graphic displays are not affected by the rate of change.

Measurement, Time perception, Human-computer interaction

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Self-initiated and respondent actions in a simulated control task

Article Abstract:

Two experiments are conducted to determine the relative importance of self-initiated and respondent actions as a function of the predictability of the system and the available information. Results indicate that events have a complex role in the ongoing activity of the operator.

Science & research, Methods, Usage, Control systems, Task analysis, Ergonomic aid, Report

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Performance with tables and graphs: effects of training and a Visual Search Model

Article Abstract:

This article examines the effectiveness of graphic presentations of information and tables. Using the Visual Search Model to measure reactions to graphs and tables, the author concludes that tables have an advantage over graphs.

United States, Evaluation, Graphic methods, Flow charts, Flowcharts

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