Abstract
Purpose. The article presents a mathematical model of indicators and quality criteria for human-machine interaction (HMI) of automated workstations (AWS) for duty dispatch services operators (DDSOs), which can be used to analyze the quality of HMI of DDSOs in order to reduce the dispatch time of emergency service units. Methods. The methods of system analysis, set theory and relational algebra are used to build the indicator model. Findings. The anatomical, social and psychosomatic features of users are identified and analyzed in the aspect of human-machine interaction. On the basis of the selected factors, a mathematical model of HMI of DDSOs in the third normal form, a mathematical model of navigation on sets of its entities, is developed. A system of indicators and criteria for the quality of HMI of DDSOs is developed, a hypothesis about their predictive capabilities is put forward. A developed software package allows measuring, recording and processing experimental data on time response characteristics of HMI of DDSOs in the system of absolute and relative coordinates of the monitor. The system also makes it possible to obtain the fundamental values of the scene characteristics of HMI of DDSOs and visual design of the user interface depending on individual characteristics of user interface elements such as size, quantity, absolute and relative position. Research application field. The results of the study can be used to quantify the quality, analyze and optimize HMI of both existing and newly developed AWS for DDSOs, as well as to develop technical specifications and formulate technical requirements for their user interface. Conclusions. The article proposes methods for studying the laws of constructing user interfaces for AWS of DDSOs and methods for their quantitative assessment. The article is a continuation of the author's systematic study of the features of human-machine interaction in real-time organizational systems.
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