Components Of Information System Research Articles

Modified VIKOR method as a component of decision support of information technology of the dual form of education

The model for supporting the student decision in choosing the subjects of specialty educational program based on VIKOR multi-criteria optimization method is developed in this paper. The developed model is the component of the dual education information system (when the student is trained in the company and educational institution at the same time on the basis of the contract). This component is a decision support tool for a student training by a dual education, taking into account the expert opinion of stakeholders in the learning process. The criteria of dual education stakeholders for ranking alternatives (subjects of the specialty program): student, educational institution, company are outlined. VIKOR method is modified by the selection of subsystems criteria in order to derive an integrated assessment of experts from different subsystems. The algorithm for integrating ratings of ranking subsystems is developed, taking into account the strategy of maximum group usefulness of VIKOR method. The weighting coefficients of subsystems and their criteria are determined by T. Saati method of hierarchies analysis. In order to take into account the uncertainty associated with the lack of information, intuitionistic fuzzy sets are used to assign assessments of the alternatives ranking by subsystem experts. The proposed modification of VIKOR method makes it possible to rank the alternatives with the involvement of different specialists with their own criteria system. This approach increases the accuracy of the obtained results, as the criteria are further divided into holders subsystems of the ranking problem. This approach enables to carry out deeper and broader analysis of ranking problem aspects. Numerical example of the developed model which confirms the acceptability of its application in practice in the dual educational process application is illustrated in this paper.

ОЦІНКА ЯКОСТІ УПРАВЛІННЯ ІНФОРМАЦІЙНИМ ЗАБЕЗПЕЧЕННЯМ ДІЯЛЬНОСТІ ОРГАНІЗАЦІЇ

The article is devoted to the study of problems of information support of the organization, namely the assessment of the quality of information management. It is determined that the effectiveness of managing the activities of the organization largely depends on the level of information support, which is designed to provide the organization with the necessary information for the formation and achievement of goals. The main approaches to the evaluation of information and information support (semantic, pragmatic, economic, syntactic or structural) are considered. It is determined that the current state of information management of the organization should be determined on the basis of a pragmatic approach (qualitative assessment) for three groups of indicators: effectiveness, resource availability and adequacy. The indicators belonging to the specified groups are considered. It is proposed to assess the quality of management of information support of the organization on the basis of the calculation of the summary indicator. The expediency of assessing the level of management of information support of the organization on the basis of qualitative (non-metric) indicators is substantiated. The problems that arise in the process of assessing the quality of information management of the organization are identified. The role of information technologies and information systems in the process of information management of the organization is characterized. It is determined that the basis of information support of the organization are information systems. The specifics and features of control, evaluation and quality management of information systems in organizations are determined. Problems related to the process of assessing the quality of information systems in the organization are described. The need for further development of theoretical and methodological aspects of evaluation of quality assessment of components of information systems and information systems, as well as information management of the organization as a whole.

Theoretical approach to solving the problem of detecting malicious processes based on the analysis of the states of the entity of the information system

Today information systems of organizations operate in conditions of vulnerabilities and their exploitation by hackers. This is evidenced by the reports of global companies on the analysis of information on threats, as well as proposals for the implementation of appropriate cybersecurity measures. Despite the measures taken to ensure the cybersecurity of these systems, the number of identified vulnerabilities is constantly increasing. One of the ways to solve this problem is to monitor the security status of the functional components of information systems during data processing and exchange. The reasons for the occurrence of malicious processes in the functioning of information systems of organizations have been established. The main reason for the presence of vulnerabilities is the properties of the functional components of this information system. The analysis of existing methods for detecting intrusions into information systems of organizations is carried out. The application of the discovery method based on the analysis of protocol states makes it possible to determine and monitor the state of network, transport and application protocols that have state concepts. A theoretical approach to solving the problem of detecting malicious processes is proposed, based on the analysis of the states of the entity of an information system as part of the cybersecurity system of an organization's information system. The implementation of this theoretical approach will make it possible to correctly formulate and solve the problem of detecting malicious processes based on the analysis of the states of the entity of the information system in real time. And in the event of a change in security, the state of this entity, when it is affected by destructive non-target processes, react to such events and restore its safe state.

Case Study of Self-Organization Processes in Information System Caching Components

Most modern Information Systems (IS) are designed with Object-Relational Mapping components (ORM). Such components bring down the number of queries to the database server and therefore increase the system performance. Caching mechanisms in software components are complex dynamic systems of open type. A simulation model of cache-application interaction has been created to assess the critical modes of the system. The authors suggest accumulating the cache elements states during the application run at discrete moments of time and present them as multi-variable time series. This work also suggests a method for reconstruction of phase-plane portrait of the system with multidimensional dynamics of the cache elements states. The article shows self-organization processes in caching components of information systems and illustrates the variability of system states for various initial conditions followed by transition to steady-state conditions. In particular, the paper illustrates dissipative structures as well as deterministic chaos with the complete determinism of queries in simulated information systems.

An Effective Design of Model for Information Security Requirement Assessment

Information security is a major domain of analysis for enhancing the security of sensitive detained business organizations. These days, attackers are advancing themselves by applying highly advanced technological solutions such as artificially intelligent malicious codes, advanced phishing methods and many others to acquire sensitive and critical data from businesses. This paper presents a novel model framework to analyze the requirements of information security for a more robust information system and its assets in organizations. The framework of this model is designed in such a fashion that both new and legacy organizations can adopt it to define the requirement of security that will ensure confidentiality, integrity and availability of information systems and their components - including sensitive domain business and private data that is critical to the organization. There are two different model frameworks which are proposed here. The first one provides specifications of the security requirements and the second provides for the audit of the access logs to capture any unethical practices and violations by internal users. The proposed model for security requirements provides the roadmap to analyze and build proper security requirements to secure business sensitive data. Stepwise processes which are needed to analyze and define security requirements are the key factors of this security model, as they help in clear definitions of security frameworks and infrastructure for an organization. The Audit Model provides the framework for defining information auditing requirements, thus enabling the capture of unethical and unauthorized access to the information system components of the organization.

METHODS OF ENSURING CYBER SECURITY OF CRITICAL COMPONENTSNETWORKS OF INFORMATION AND TELECOMMUNICATION SYSTEM

It is established that the efficiency and reliability of information and telecommunication systems, in particular the networks that are part of them, significantly depends on the high level of protection of critical components. However, the constant improvement of the technical equipment of these systems requires the creation of new and improvement of existing methodological support for cyber security. One of the promising approaches is the development of a universal method of cybersecurity in the context of cyberattacks (influences, threats, etc.) and unauthorized access by unauthorized users to critical nodes (components) of information and telecommunications systems. Timely detection, prompt counteraction to cyber threats and unauthorized access to critical network components is a necessary component of ensuring a high level of cybersecurity of the information and telecommunications system as a whole, especially in the context of hybrid warfare and armed aggression by the Russian Federation. To this end, the article proposes a method of cybersecurity of critical components of information and telecommunications systems, which is based on the integrated application of monitoring the state of network nodes and user access to them, recording the facts of cyberattacks based on analysis of incoming (outgoing) traffic, timely detection of unauthorized access to and commission of cyber threats, as well as operational response to these attempts. The paper presents the results of verification of the proposed methods. To this end, the article proposes a method of cybersecurity of critical components of information and telecommunications systems, which is based on the integrated application of monitoring the state of network nodes and user access to them, recording the facts of cyberattacks based on analysis of incoming (outgoing) traffic, timely detection of unauthorized access to and commission of cyber threats, as well as operational response to these attempts. The paper presents the results of verification of the proposed method. It is shown that its application allows to quickly detect the facts of cyber threats and unauthorized access to critical components of information and telecommunication systems networks and effectively counteract these attempts.

University Management System Based On BIM-GIS-Technologies

The work has an information system developed based on GIS and BIM technologies. The component of the geographic information system of the Nizhny Novgorod State Technical University n. a. R.E. Alekseev - information model of the NSTU, built in the REVIT tool environment. The models include a digital terrain model, a three-dimensional model of the educational building and utilities, a library of materials. The features and technology of creating external models of the university are considered. The project is intended for administrative and economic services of the university, decision support for engineering, and economic services. The information system implemented within the framework of this technology will make it possible to determine the optimal parameters for the operation of a building throughout its entire life cycle and take into account aspects such as meeting legal, environmental, and operational requirements. The unique integration of BIM and GIS technologies implements the apparatus for data exchange between BIM and GIS components.

MENINGKATKAN KETERAMPILAN SISWA DALAM PEMBELAJARAN DATABASE, MAIL SERVER DI SEKOLAH SMKN 9 SURAKARTA

In improving the quality of student skills in the process of learning databases, mailserver at SMKN 9 SURAKARTA, schools not only depend on the quality of managers but also improvement of management systems and the development of students' ability to apply database concepts. Mastery of database concepts is very important in order to improve student skills and improve student creativity in developing websites and improving the quality or ability of students so they can compete in the world of work. The database is one of the important components in information systems, with the information system it will provide accurate, timely and relevant information for its users so that it can be used for decision making. Teacher strategies in improving Database skills at SMKN 9 SURAKARTA, in delivering the teacher's material, first explain and explain clearly and hatefully then give examples of outputs from the database program, so students will try to be more competitive and efficient and try to improve skills in learning databases the.

Имитационная модель управления оперативно-выездными бригадами электросетевой компании

The lack of the necessary investment in the electric grid complex over the past 20 years has led to a significant physical and technological obsolescence of electrical networks. In this regard, the task of ensuring the reliability of the provision of services by electric grid companies with a minimum level of costs is urgent. The implementation of this task in many respects depends on the reduction of the duration of the interruption of power supply to consumers, which can be achieved by improving the process of management of duty personnel of field service teams in case of accidents and technological disturbances. At the same time, modern grid companies were focused on minimum economically sound costs and aimed at improving the efficiency of financial and economic activities through the rational use of resources. The structure of a simulation model of field service team management in the event of accidents and technological disturbances in an electric grid company at the middle level of system abstraction is proposed. The simulation model includes an agent model, a system dynamics model, a component of the geo information system and experiments modules. The description of the simulation model of field service team management in the event of accidents and technological disturbances is formalized, input and output information on the components of the model is selected, the information describing the agent model is structured, and a diagram of the system dynamics model is built. The adequacy of the simulation model was checked based on the statistics of Lenenergo PJSC. Experimental schemes have been developed for a simulation model of operational team management in the event of accidents and technological disturbances in order to determine the best reliability and cost indicators. The developed approach can be used to create multi-approach simulation models for the management of operational teams in the event of accidents and technological disturbances for various electric grid companies by selecting modes according to the statistical reports of the electric grid company and connecting the corresponding GIS modules.

Human Organization and Technology-Fit Model to Evaluate Implementation of Library Information System

This study discusses the factors of influence on the successful implementation of library information system at the Library Archives Office of Riau Province that called QALIS (Quadra Automated Library Information System). This evaluation is using HOT-Fit model. HOT-Fit placed three substantial components of information system, there are human, organization and technology. The purpose of this research is to evaluate and knows that system quality, information quality, service quality, system use, user satisfaction, organization structure and net benefit are the factors affecting successful implementation of QALIS. The underlying purpose of this research is the phenomenon that QALIS was implementation since 2010 but not optimal using of librarian and it is utilization not measured for all library users. Data is obtained through distributing questionnaires to 100 respondents, consisting of 9 librarians and 91 library users. The results of this study indicate that information quality variables and service quality variables influence user satisfaction, user satisfaction variables influence system use, organization structure variables influence user satisfaction, and finally all three variables influence net benefit (level of significant 0.05).
 Keywords: HOT-Fit model, Library Information System, SEM PLS, QALIS

Detection Efficiency Measurement of Single-Photon Detectors Based on Spontaneous Parametric Scattering Process Using the Heterodyning Method

The article presents the various problems in the metrological support for the components of quantum information systems and uses the Klyshko reference method given in the international ETSI standard, which works on the principle of spontaneous parametric scattering effect. It is found that the measurement time has increased by an order of magnitude at noise level with a high power density at low frequencies when compared to desired signal level for single-photon detectors. So, the heterodyning method is proposed to increase the efficiency of signal accumulation. The method consists in accumulating a signal at a higher frequency and introducing modulation into the standard Klyshko scheme. The method proposed is simulated numerically and the signal-to-noise ratio is increased by a factor of 14 compared to simple signal accumulation has been established experimentally.

Digital Elevation Models of the Bottom in the Operational Oceanography System

A new area of oceanography, operational oceanography, involves a comprehensive assessment and forecast of the variability of the state of the marine environment. This requires systematic study of numerous natural parameters, the creation of integrated measurement systems for the properties of the water column and seafloor, rapid data collection and transmission systems, assimilation of new data in the model, etc. The seafloor has a significant impact on the hydrophysical state of the environment and vice versa; accordingly, information is needed on the state and properties of the bottom in the deployment area of various surveillance tools, including assessment of possible geohazards. The spatial distribution and possible variability of the geomorphological and geological–geophysical parameters of the bottom, which determine the geoacoustic properties, depends on the shape of the relief and its morphometric characteristics. Thus, the digital elevation model (DEM) is an essential component of marine geographic information systems and an essential element of operational oceanography. A DEM entails an organized structure of files containing vector representations of various types of spatial objects, information on their attributes, and topological relationships between them. The DEM displays the seafloor relief as a grid file with a resolution corresponding to a given scale. Methods for the direct spatial mathematical processing of DEMs make it possible to obtain a wide range of bottom surface characteristics, including morphometric. DEMs can have both independent practical application and act as parameters for systematizing, typifying, and zoning the seafloor. The paper outlines some areas of the possible use of DEMs in operational oceanography with a case study of the Arctic shelf.

Precising the evaluation of radio information system reliability characteristics based on the empirical failure distribution

For highly reliable radio information systems the failures are quite rare phenomena leading to critical decrease in functional characteristics. At the same time, failure distribution may be a subject to rather complex laws, which together with a lack of real data makes it difficult to evaluate the reliability characteristics of the product. Achieving high accuracy of reliability characteristics evaluation is possible due to constant updating the parameters of the radio information system reliability model based on experimental data on the technical condition of the product components starting from the stage of its development. In this case, it is possible to determine the reliability characteristics based on current data on the performance of radio information system components based on the empirical failure distribution function. In this article we propose an algorithm for transferring to an empirical distribution and counting the characteristics (mean time between failures) of radio information system reliability based on it.

Regeneration of information control systems

The research objective is to study the technology of regeneration of an information control system. The article elaborates on the concept of regeneration in relation to technical and information systems. It is shown that the quality of a modern control system is determined by the quality of software, technology and data. The difference between updating the components of an information control system and regeneration of these components is shown. The article also determines the conditions for the application of updating the information control system. There are determined the conditions of regeneration of the information system components. In addition, the authors provide mathematical models of updating and regeneration. It is proved that the regeneration of components solves the problem of complementarity of the information system components. Updating a component does not solve this problem.

Concept of Mobile Application for Mobility as a Service Based on Autonomous Vehicles

Mobility as a service (MaaS) is proposed to encourage travelers to choose sustainable mobility options and reduce use of individual car. In the future, mobility services based on autonomous vehicles (AVs) are also incorporated into MaaS. The objective of our work is to elaborate the concept of mobile application, aiding the MaaS based on AVs. We applied a system engineering process-oriented approach to determine the information system components, the functions as well as input and output data. Functions of back-end information system operation and front-end interface of application have been identified, as well as the information flows have been modeled. We highlighted the main differences between MaaS and MaaS based on AVs. We found that recording of event-based points and feedback management are regarded as pivot functions in this self-travel service. Our results facilitate the development of smartphone application for the MaaS based on AVs.

The Analysis of The Impact of Accounting Information System on The Effectiveness of Internal Control

The phenomenon of low effectiveness of internal PT. Langen Kridha Pratyangga Sumedang was presumed to form the reflection of low in accounting information system components. This presumption must be proved and seeked its truth and solution because of the accounting information system components give indication that organization was managed with good and fundamentally will produce the effective employee’s behavior in achieving organization goals. This research takes the title: The Analysis of The Impact of Accounting Information System on the Effectiveness of Internal Control (Case Study at PT. Langen Kridha Pratyangga Sumedang).
 The research used to approach was theory of reasoned action which explains organizational behavior in a system. The implementation of this research used quantitative method, by using purposive sampling technique. The sample size was 70 persons of employees which were distributed equally to employee whose listed as employee at PT. Langen Kridha Pratyangga and have passed 3 months trial. Questionnaire and interview are used as research technique and multiple linear regression was used as the method of analysis.
 The result of this research at PT. Langen Kridha Pratyangga Sumedang indicated that (1) the people/human resources have no influence on the effectiveness of internal control, (2) the procedures and instructions have significant and positive influence on the effectiveness of internal control, (3) the data have significant and positive influence on the effectiveness of internal control, (4) the software has significant and positive influence on the effectiveness of internal control, (5) information technology infrastructure has significant and positive influence on the effectiveness of internal control. The result of this research gives implication in taking policy to increase internal control effectiveness. So, The Director of PT. Langen Kridha Pratyangga Sumedang and institution that related with others have expected to pay attention on people/human resources, procedure and instruction, data, software, and technology information infrastructure because four of these variables have significant and positive influence on the internal control.

Evaluation of the Usability of the Immunization Information System in Brazil: A Mixed-Method Study.

Introduction: Usability is a quality attribute that can evaluate the ease of use of user interfaces, based on standards called usability heuristics. Objective: To evaluate the usability components of the Brazilian Immunization Information System (IIS), focusing on the users and their interaction and agility with the interfaces. Materials and Methods: It was a concomitant and convergent mixed-method study that used a cross-sectional design for the quantitative approach and the indirect method of heuristic evaluation for the qualitative approach. Participants were 137 nursing professionals working in vaccination rooms, who completed a structured questionnaire on standards of usability quality, and 4 specialists in information technology, who used a semistructured form to carry out a software inspection. Descriptive and inferential statistics and the heuristic inspection were used for the analyses. Results: The evaluation resulted in 10 violated heuristics and identified 14 usability problems on the 68 screens of the IIS. The system presented simple usability problems (grade 2 severity), which can be repaired, with a low correction priority. The heuristics best evaluated were error prevention (3.03 ± 0.54) and help and documentation (3.00 ± 0.68); and the worst evaluated was visibility of system status, with a mean of 2.62 ± 0.55. Professionals with a technical education level presented a higher score on the scales for the recognition rather than recall heuristic when compared with the nurses (2.77 ± 0.49 vs. 3.67 ± 0.66, p = 0.003). Conclusion: The system provides easy access for users, however, has weaknesses in its ability to allow the users to easily achieve their goals of interaction with the interface.

System for analysing of big data on cybersecurity issues from social media

The paper proposes and substantiates approaches to building a corporate system for monitoring and analyzing social media on cybersecurity issues, which are based on the concept Big Data, Data/Text Mining, Information Extraction, Complex Networks, and Cloud Computing. The components of Elastic Stack technology, Sphinx information retrieval system, Graph Data Base Management System Neo4j, and Gephi graph analysis system are examined in detail. The main idea of a system for analyzing large amounts of data on cybersecurity issues from social media is the simultaneous application of methods and means of information retrieval, data analysis, and aggregation of information flows. The system should ensure the implementation of the following functions: the formation of databases by collecting information from certain information resources; settings for automatic scanning and primary processing of information from websites and social networks; maintaining full-text information databases; identifying duplicates similar in content to informational messages; full-text search; analysis of text messages, determination of tonality, the formation of analytical reports; integration with geographic information system; data analysis and visualization; study of the dynamics of thematic information flows; predicting developments based on the analysis of the dynamics of the publication in social media; providing access for many users to the functional components of the system. The practical significance of the results is to create a working layout of the content monitoring and analysis system of social media on cybersecurity issues, ready to be used as a component in information and cybersecurity decision support systems. The interface of the system layout is considered, in which the functions of search, analysis, and forecasting of information appearance in social media are available. Central to the interface is a digest of the most relevant user needs. In the analytical mode, a number of tools are implemented for graphical presentation of the analyzed data, which are displayed as a time series of the number of relevant queries per day, as well as viewing the main topics, clusters grouped by predefined reference words. The system provides modes for forming networks of concepts that correspond to individual messages (persons, brands) and information sources that allow you to rank the concepts and explore the relationships between them.

EVALUATION OF THE EFFICIENCY OF INTRUSION DETECTION SYSTEMS IN PRODUCTION MANAGEMENT INFORMATION SYSTEM OF A MILITARY-INDUSTRIAL COMPLEX

Security components of the production management information system of the military-industrial complex are a single mechanism that can protect restricted access information from possible violators. If one of the elements of information security does not work efficiency, it will become a problem for the entire defense system of the military-industrial complex. Production management information systems need to take into account all available ways to prevent information leakage to do this, the owners of military-industrial complexes must conduct an efficiency assessment. The article suggests a possible way to solve the problem when considering one of the most important subsystems: intrusion detection system. Currently, there is no methodology for evaluating the efficiency of intrusion detection systems for production management information systems. This system is located on a real object located in the Irkutsk Region and belongs to the military-industrial complex.

Information and analytical ensuring of dairy farming sustainable development in agricultural enterprises

The article deals with the current state of information and analytical ensuringof dairy livestock in agricultural enterprises of Ukraine. It is proved that introduction of the information system of business processes management in dairy livestock and improvement of the approach to the calculation of the production cost will contribute to the improvement of quality and safety of products, and will create preconditions for sustainable development of business structures of the industry. The components of a comprehensive information and analytical support system are identifed, which include: computerized systems for managing production processes and dairy herds at the agricultural enterpriseslevel; setting up scientifc and consulting support for producers by regional centers, which should be created on the basis of agrarian universities; improvement of the production costing system taking into account quality of milk and weight of litter; the calculation of the actual cost of feed. It is proposed to create a “Dairy Livestock” information system, which should include such information resources as: a register of owners of farm animals; register of farm animals (herds); the register of means of identifcation. This system will allow to create methodological and technological bases for introduction of a unifed information system that meets the national and international requirements of the cattleidentifcation and registration system, will assist in the development and implementation of a centralized national system of registration and maintenance of data on the subjects of the industry, which will facilitate the creation of the technological basis for organizing electronic mechanisms for tracking animal products. It is established that dividing the total amount of costs for the volume of production of basic conditions (fat content - 3.4% and protein content - 3.0%), the cost of 1 c milk is calculated taking into account the quality. With this approach to costing, it is possible to generate additional income from the sale of milk, part of which is appropriate to be used to stimulate the work of staff of livestock complexes in order to improve the quality of products. Key words: information system, dairy cattle, livestock, productivity, herd management systems, product evaluation, cost.