The problem of evaluating the quality of user interfaces of computer programs is considered.
Indicators of the overal and relative information content of user interfaces are proposed, their
mathematical model is developed, and analytical expressions for calculation are obtained. Most often, an indicator of the quality of user interfaces is understood as a function of the total time of elementary
operations on its elements spent by the user to solve a specific task. Interface elements are understood
as information interaction objects - input fields, icons, various types of lists, tables, and so on. Basic
operations are understood as actions with them - finding, reaching, and managing. The entire set of
elementary actions for solving a specific task is called the task profile. It is convenient to use time
indicators to get generalized values of the interface quality indicator both in General and at each step of
the profile (on the principle that the shorter the time or the number of operations, the better). But they
answer the question "how much", not "why". Why, for example, can a task profile have a greater number
of steps but a shorter execution time compared to a similar one? In General, interface elements make up
a complex system with multidimensional relationships by belonging to a particular task, by importance,
by frequency and method of use, and so on. Therefore, an attempt to randomly change the configuration
of the monitor screen in order to optimize actions at a particular step may lead to changes in the time
values at the remaining steps of the profile with unpredictable results. One of the ways to solve the
problem of analyzing and/or optimizing interfaces is to develop quality indicators that operate on the
characteristics of the overall layout of interfaces, in particular the number, size, and location of elements
on the monitor screen. These indicators include the proposed indicators of overall and relative
information content.
1. ISO/IEC TR 12182:2015 Systems and software engineering — Framework for
categorization of IT systems and software, and guide for applying it.
2. GOST R ISO/IEC 25010-2015 Information technology. Systems and software engineering. Systems and software Quality Requirements and Evaluation (SQuaRE). System and
software quality models
3. GOST R ISO 9241-151-2014 Ergonomics of human-system interaction. Part 151. Guidance
on World Wide Web user interfaces.
4. Alan Cooper. About Face: The Essentials of Interaction Design. - Piter, ISBN: 978-5-496-
01718-3, 978-5-4461-0877-0, 2020.
5. Ilya Birman. https://bureau.ru/bb/soviet/20160809/
6. Paul Bryan. Are Personas Still Relevant to UX Strategy?
https://usabilitylab.ru/blog/personas-ux-strategy/ 2017
7. Joshua Porter. Principles of User Interface Design. http://bokardo.com/principles-of-userinterface-design/
8. Magazinnirk V.D. Human-computer interaction. Tutorial. Publishing House "University
Book", 2016 г., ISBN: 978-5-98699-181-8.
9. Raskin D. Interface: new directions in the design of computer systems. SPb. Symbol plus,
2010.
10. Morozov A.N., Zarubin V.S, Grishin S.A. To the question of assessing the quality of the
user interface of the AWP of the centralized protection points. Bulletin of the Voronezh
Institute of the Ministry of Internal Affairs of Russia. 2019;1:45-50. Voronezh. Voronezh
Institute of the Ministry of Internal Affairs of Russia.
Morozov Alexey Nikolaevich
Email: alex_frost@mail.ru
Federal State Institution Scientific Research Center OKHRANA Of The Federal Service Of National Guard Of The Russian Federation
Moscow, Russian Federation
Zarubin Vladimir Sergeevich
Doctor of Technical Sciences, Professor
Email: zarvs@mail.ru
Federal State Institution «Scientific Research Center OKHRANA Of The Federal Service Of National Guard Of The Russian Federation
Moscow, Russian Federation
Grishin Segrey Alexandrovich
Email: grishinsergey@mail.ru
Federal State Institution «Scientific Research Center OKHRANA Of The Federal Service Of National Guard Of The Russian Federation
Moscow, Russian Federation
