Article

Article title OPTIMIZATION OF ERGONOMIC PARAMETERS OF THE INFORMATION SYSTEM INTERFACE
Authors B.V. Chernikov, A.A. Popov
Section SECTION I. INFORMATION-MEASURING SYSTEM
Month, Year 03, 2017 @en
Index UDC 004.7; 004.75
DOI
Abstract The user experience with the software application is described by ergonomic characteristics. Most often the Schneiderman indicators (user speed, number of human errors, subjective satisfaction of the user, speed of training the user to work with the user interface, degree of retention of user interface skills in the long-term non-use of the software application) are considered as ergonomic characteristics. The values of ergonomic characteristics of the user interface are closely related to the psychophysiological features of the user in the detection, discrimination and recognition of visual information. The difference in the conditions of detection, perception and recognition of symbols displayed on the user interface leads to the fact that when performing the actions necessary to solve the same task by the same user, different options for displaying the sym-bols correspond to different execution times of the actions. The influence of the psychophysiological parameters of visual information on the recognition of symbols displayed in the user interface is discussed in the paper. These parameters include the angular dimensions of the object (symbol), brightness, illumination, contrast, critical flicker frequency, color indication and color contrast. In this paper, we analyze the influence of three parameters: the font size (analogue of the angular size) of the symbol, the color of the symbol, the background color (user interface). The statement of the problem for determining a combination of parameter values corresponding to the best conditions for character recognition is given in the article. The functionality of a software application for determining a combination of parameter values corresponding to the shortest character recognition time on the user interface is highlighted. The algorithm of the software application is given. Examples of combinations of font size, font color and background values corresponding to the shortest recognition time are considered. The results of the software application can be used by IT staff to individually configure the software applications for enterprise employees.

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Keywords Ergonomics; software application; user interface; visual information; character recognition; character color; character size; background color.
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