The object of research is a human in complex sociotechnical systems (STS). A particular case of the sociotechnical system is the human-machine system (HMS). The subject of research is the professional activity of a person in the sociotechnical system, the structure of his professionally important qualities, the methods of assessing the professional suitability of a person, and the methods of training and training of operational personnel. The model of vocational aptitude and the process of decision-making in the class of hierarchical systems were developed based on the hierarchy analysis method. Intelligent processing of data was requested to be carried out by the use of decision support systems, which provides support to multicriteria decision in a complex system. The experimental research of vocational aptitude assessment for operators of transport-technological machines was carried out. The outputs of the decision support systems were obtained individual operator’s portraits (IOP) and integrated estimation capabilities. As a result, it became possible to reduce the preparation cost of professionals and to raise the level of the operator’s professional skills. In addition, based on the IOP, we can customize the HMC interface.

В работе исследуется влияние формы, размера и способа захвата рукоятей джойстиков оператором на качество человеко-машинного взаимодействия, а именно, на скорость и точность позиционирования рукоятей джойстиков. Приведены результаты натурного эксперимента с участием 82 добровольцев по изучению скорости и точности позиционирования рукоятей джойстиков различных размеров, формы и способа захвата. Установлено, что с точки зрения скорости и точности операторского взаимодействия с джойстиками различие в форме, размерах и способе захвата рукояти джойстика не оказывает существенного как негативного, так и позитивного эффекта, при условии сохранения эргономичности конструкций рукояти джойстика. Установлено также, что при использовании полноразмерных джойстиков с захватом ладонью в некоторых задачах, требующих высокой скорости операторских реакций, возможно добиться большей эффективности операторского взаимодействия по сравнению с другими джойстиками. В статье также приведены рекомендации по практическому применению джойстиков в различных ситуациях организации операторского интерфейса. Introduction. Manipulator control is widely used in operator-driven systems, including logging, construction equipment, and aircraft. To facilitate operator input into control systems for such machinery, joysticks or sidesticks—manipulated along two or three axes – are commonly employed. The design of these joysticks can vary significantly depending on the control task at hand. The shape of joystick handles may influence tactile feedback perception, mechanical force application, and overall feedback depth between the operator and the equipment. The aim of this study is to examine how different joystick handle shapes, sizes, and gripping methods affect the accuracy and speed of operator control. Methods and materials. To objectively measure joystick handle positioning accuracy and speed, a computer-based test was developed, displaying visual feedback on a monitor. A bootstrapping approach was used to assess statistically significant differences between groups. Cluster analysis and dimensionality reduction techniques, including Principal Component Analysis (PCA) and Uniform Manifold Approximation and Projection (UMAP), were applied alongside the k-means unsupervised machine learning method to identify potential clusters in the data. Results. Cluster analysis using PCA, UMAP, and k-means did not reveal distinct groups. However, weak clustering tendencies were observed in the UMAP representation. No statistically significant differences were found in joystick positioning accuracy across different handle shapes, sizes, and gripping methods. From a speed and accuracy perspective, variations in joystick handle shape, size, and grip do not significantly impact operator performance, provided the joystick handle maintains an ergonomic design. In tasks where speed is prioritized over precision – while maintaining acceptable accuracy – full-size joysticks with a palm grip are recommended.

Introduction. The article presents research findings on the comprehension of perceptively simple visual information in two -dimensional and three -dimensional spaces. The purpose of the article is to identify the relationship between the accuracy of solving the problem of simple visual and motor monitoring of a moving object and the technology of presenting information: using a helmet of virtual reality and on a standard electronic display. Materials and Methods. The study used theoretical (system analysis) and empirical (experimental) research methods as well as mathematical statistics techniques and cluster analysis. Results. The study has summarized the experience of using virtual reality technologies for instruction and vocational training of operators for various industries. The importance of ensuring the adequacy of the perception of the virtual object, taking into account the physiological characteristics of the visual perception of the subject is emphasized. The authors provide recommendations for using virtual media and information on electronic displays in various operator situations. Conclusions. The article concludes that the use of virtual reality technology does not lead to a statistically significant change in accuracy of solving simple visual-motor problems in comparison with the technology of presenting information on the screen of a standard video monitor. Thus, the widespread replacement of information display equipment from electronic displays with means of displaying virtual content to solve simple visual-motor problems in the process of training operators of remote equipment is not appropriate.