Proceedings of the 9th International Conference "Distributed Computing and Grid Technologies in Science and
                           Education" (GRID'2021), Dubna, Russia, July 5-9, 2021




  DEVELOPMENT AND IMPROVEMENT OF ASSESSMENT
   MEANS OF TECHNICAL SYSTEMS QUALITY IN THE
            PROCESS OF MAINTENANCE
                            K.Z. Bilyatdinov1,a, Е.А. Krivchun2
         1
             ITMO University, Kronverkskiy prospekt, 49-A, St. Petersburg, 197101, Russia
  2
      Saint-Petersburg State University of Aerospace Instrumentation, 67, Bolshaya Morskaia
                             str., Saint-Petersburg, 190000, RUSSIA

                                         E-mail: a k74b@mail.ru
The paper proposes rational instruments for innovative development and improvement of methods of
technical systems’ quality assessment in the process of maintenance. The proposed innovations are
based on the application of a number of interconnected model, methods and computer programs for
their implementation, which together allow to decrease time and resources spent on assessment of the
quality of systems and (or) elements (products) of the systems. It is recommended to apply the
proposed methods in order to make timely managerial decisions based on the results of technical
systems’ quality assessment in the process of maintenance.


Keywords: method, system, assessment, rating, quality, solution, methodology, model,
principles



                                                                    Kamil Bilyatdinov, Ekaterina Krivchun

                                                               Copyright © 2021 for this paper by its authors.
                      Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).




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Proceedings of the 9th International Conference "Distributed Computing and Grid Technologies in Science and
                           Education" (GRID'2021), Dubna, Russia, July 5-9, 2021




1. Purpose of the study
         The topicality of establishment of innovative ways of development and improvement of
assessment means of technical systems (hereinafter, systems) quality is proved by contemporary
requirements for improvement of management and decision making process. The purpose of this trend
is increase of effectiveness of systems functioning which in its turn leads to the necessity of
development of new scientifically justified methodological, technical and technological decisions [1,
2, 7, 11].
        Nowadays one of the rational ways of developing such decisions can be creation of new and
improvement of existing methods of quality assessment, rational procedures of information processing
and models of systems management in the process of exploitation. Creation and introduction of such
decisions considerably influences development of production resources, which is of primary
importance considering the fact that effective and stable maintenance of systems has great value for
economics [7, 9, 10]. The proposed innovations help to level existing contradictions between and
increasing volume of heterogeneous sources of structured and unstructured data of studied systems
and objective necessity to make timely managerial decisions on the basis of existing means of quality
assessment [2, 8, 9, 11]. Thus, the essence of the innovative approach lies in the improvement of
existing means of quality assessment with consideration of the specificity of maintenance and
perspective capacities of assessed systems.
        In its turn, realization of the proposed innovative approach will ensure formation of a complex
of scientifically justified technical, technological and methodological decisions. In practice, these
decisions will form prerequisites for the increase of management effectiveness without expenditures of
extra resources [2, 9].
         Obviously, in the context of the presented problem innovative development and improvement
of existing methods will consist in the increase of management effectiveness and decision making at
the stage of systems maintenance. This purpose will be achieved through a considerable decrease of
time and resources expenditures for the assessment of quality by means of development and
implementation of a complex of innovative methodologies of quality assessment and software for their
realization (hereinafter, the methodologies). In actual practice, implementation of the methodologies
will lead to decrease of time needed for making justified managerial decisions in the conditions of
increased volume of the information used for systems quality assessment.
        The current level of development of information technologies and computerization of the
society allows the authors to study the above presented problem in relation to contradictions of
management of technical-organizational systems [1, p. 40]. Following this, the authors group current
contradictions of management into four levels: personal, social, technical and technical-organizational.
Within the proposed innovative approach the developed methodology is mainly applied at technical
and technical-organizational levels [1, p. 42].


2. Model description
        Nowadays, a variety of firmware, other technical systems and present development of
technologies lead to the necessity of a complex use of information from internal and external
information resources. Development of information technologies allows formation of information
reserves (hereinafter, IR) of systems quality assessment.
        In consideration of the above-mentioned, the described innovations are based on three
principles:

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Proceedings of the 9th International Conference "Distributed Computing and Grid Technologies in Science and
                           Education" (GRID'2021), Dubna, Russia, July 5-9, 2021



       The first principle consists in ensuring effectiveness of methods and minimization of risks of
making a wrong decision based on the results of quality assessment.
        The second principle consists in universality, practical orientation of methods, cheapness and
simplicity of their realization in different systems without considerable expenditures of time and
resources for use of telecommunications, computer aids and preparation of staff.
        The third principle consists in structure-functional classification of assessed systems
(products) within technical systems. The essence of this principle is classification of a number of
assessed systems by place (conditions) of maintenance, after which these groups of systems are
divided into other groups (subgroups) according to their function and tasks [2, p. 199].
      Following these three principles, the most rational approach for effective application of the
methodologies is creation of a universal model of systems’ support in the process of maintenance.
        The proposed model presents a description of the procedure of systems’ support in the process of
maintenance. The purpose of the model is rational organization of the work needed for development
and improvement of systems. This model is universal and applicable for various systems’ support with
consideration of the specificity of their functioning and possible unfavorable conditions. The model
aims at identification of a role, place, content and the most rational application of IR, methodologies
and software for systems quality assessment in the process of maintenance in the conditions of saving
time and resources [6, p. 105].


3. Methodology of assessment of systems effectiveness
        This methodology is developed on the basis of modified DEA method [3, p. 612]. In actual
practice, the methodology is realized by a software “Analysis and assessment of systems
effectiveness” (Certificate of the state registration of software № 2020610389, 14.01.2020, registered
by Biliatdinov K.Z.). The methodology and software are aimed at analysis and assessment of
effectiveness of systems and (or) one system in different periods of their (its) functioning.
         The methodology, realized by the software, makes all necessary calculations for creation of
tables, graphs and diagrams and for systematization of received values of correlation dependence of
indices of systems functioning. Also, it allows to compare systems (periods of time) by the result and
(or) index of systems functioning or by correlation of spent resource and the result, moreover, it can
make ratings of systems.
         The main positive effect from implementation of the methodology and software consists in
clarity and visibility of the results, also, in decrease of time and resources spent on assessment of
effectiveness and increase of validity of managerial decisions achieved through the possibility of
comparison and necessary specification of spent resources in the process of analysis and assessment of
a system’s effectiveness [3, p. 617].
        Methodology of assessment of systems stability [2]. In actual practice, the methodology is
realized by a software “Assessment of systems stability” (Certificate of the state registration of
software № 2020615328, 21.05.2020, registered by Biliatdinov K.Z.). Purpose of the methodology
and software:
         1. Assessment of stability of systems’ activities of a function (functions) and (or) ensuring of
stability of functioning depending on the results of influence of unfavorable conditions in a given
period.
         2. Calculation of a coefficient of a system’s stability as a quality index in the sphere of
stability ensuring.
        3. Analysis of the influence of values of quality indices of systems (products) on the stability
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                           Education" (GRID'2021), Dubna, Russia, July 5-9, 2021



of a system and justification of recommendations for the increase of its stability by means of
improvement of values of quality indices of systems (products) within it (improvement of
maintenance, technical support and staff preparation, choice of modernization direction or justification
of the necessity to create new systems).


4. Complex methodology of systems quality assessment in the process of
maintenance
         The basic sequence of actions when implementing this methodology can be of two variants
depending on the kind of information used in the process of assessment: information based on
statistical data or statistical and expert information. The essence of the methodology is in step-by-step
application of interconnected calculation tables for quality assessment based on statistical and expert
information with the possibility to identify sources of information [4, p. 21].
        Method of rational processing of information resources and formation of IR of systems
(hereinafter, the method) [2, 6]. In actual practice, the method is realized by a software “Realization of
the method of rational processing of information resources and formation of information reserves of a
system” (Certificate of the state registration of software № 2020610335, 13.01.2020, registered by
Biliatdinov K.Z.).
        The method is aimed at considerable decrease of man-hours and time for collection and
processing of information, also, at formation and renewal (upkeep in up-to-date condition) of IR of
quality assessment in conditions of increased volumes of processed information.
       The essence of the method: information and applied software tools are systematized in IR,
which consist of a database with main data about a system and of an archive. Routine tasks of
information collecting and processing are sequentially completed on two stages [6, p. 108].
         The first stage – work with IR of a system. The task is completed by addressing IR. During
this, the request first comes to the database, then to the archive. In the majority of cases, officials
(decision-makers) are satisfied with the response from the database. In this case, the work finishes
with the closure of the first stage. As the result of this, IR of a system are replenished with the
information of a completed task.
       The second stage – addressing external information resources. If IR of a system do not contain
the required information in corpore, then, an official (decision-maker) may decide to search the
information on the Internet and (or) send a request to other organizations and institutions [6, p. 110].


5. Сonclusion
        To conclude, it is necessary to emphasize that the proposed innovative approaches help to
increase universality of the methodology. Thus, the methodology and its elements can be effectively
applied to three main spheres:
        1. Increase of effectiveness of management, maintenance and technical support of assessed
systems.
        2. Increase of quality of research works and development projects in the area of creation and
modernization of systems.
        3. Increase of quality of staff preparation in the sphere of maintenance and technical support of
hardware-in-the-loop tools and technical systems.
        The most effective direction of application of the proposed methods (methodologies and
software) is their application as key part of integrative reserves of increase of effective functioning of
systems in the process of maintenance.
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                           Education" (GRID'2021), Dubna, Russia, July 5-9, 2021




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