scholarly journals Mathematical model for organizing storage and providing access to files in distributed information systems

2021 ◽  
Vol 2131 (3) ◽  
pp. 032014
Author(s):  
A Egorov ◽  
A Makshanov ◽  
N Krupenina ◽  
L Tyndykar
Keyword(s):  
Mathematical Model ◽  
Information System ◽  
Information Systems ◽  
Data Exchange ◽  
Distributed Information Systems ◽  
Technical Aspects ◽  
Distributed Information ◽  
Storage Model

Abstract Existing solutions for data exchange problem are considered. Installation feasibility and use FTP-server as an effective tool for storing and providing access to files is analyzed. Technical aspects of its work, as well as the tasks range that can be solved with its help are specified. Within the adaptive information system limits the general interaction functional structures scheme of the distributed FTP-server is resulted, and as the presence concealment scheme of storehouses by a controlling server at connection at the client. The mathematical storage model organization and access to files, allowing to realize rational files distribution sent by the client among available storages, is described.

scholarly journals The principles of synchronization in the distributed information systems

2020 ◽  
Vol 183 (5-6) ◽  
pp. 79-88
Author(s):  
Ivan Sinitsyn ◽  
◽  
Anton Mironov ◽  
Yuriy Vorontsov ◽  
Nikita Borzykh ◽  
...  
Keyword(s):  
Information System ◽  
Information Systems ◽  
Geographic Location ◽  
Data Synchronization ◽  
Multi Agent Systems ◽  
Distributed Information Systems ◽  
Distributed Information ◽  
Agent Systems ◽  
Multi Agent ◽  
Google Search

Information, especially its automated processing, is still an important factor in improving the efficiency of any organization. Distributed information systems (IS, ISs) differ from conventional ISs in architectural and infrastructural principles, as well as in the geographic location with integration into one information cluster. One of the examples of distributed information systems is the infrastructure of the Google search engine - more than 2,000 servers, with server bases in almost every country in the world, which allows achieving a minimum delay in sending and receiving client requests. A distributed information system can have a large number of different databases, both local and remote, with which constant data synchronization is required, while maintaining a backup copy of previous data in case of failures and emergency stops. Distributed information systems are highly reliable and require multi-level protection of the cluster from unauthorized access, adherence to the principles of data synchronization, which differ from a conventional information system. Within the framework of this paper, synchronization processes are investigated using mathematical and computational tools, creating an environment for distributed information systems. It is advisable to use the results of the work to coordinate the operation of components of multi-agent systems for various purposes, transmit messages between agents, build communication protocols, and provide conditions for self-organization of multi-agent systems.

A Methodology for Developing Trusted Information Systems

2008 ◽  
pp. 872-899
Author(s):  
Maria Grazia Fugini ◽  
Pierluigi Plebani
Keyword(s):  
Information System ◽  
Information Systems ◽  
Security Requirements ◽  
Mutual Trust ◽  
Distributed Information Systems ◽  
Distributed Information ◽  
Design And Implementation ◽  
Analysis Design ◽  
Data Sensitivity ◽  
Cooperative Processes

In building cooperative distributed information systems, a methodology for analysis, design and implementation of security requirements of involved data and processes is essential for obtaining mutual trust between cooperating organizations. Moreover, when the information system is built as a cooperative set of e-services, security is related to the type of data, to the sensitivity context of the cooperative processes and to the security characteristics of the communication paradigms. This paper presents a methodology to build a trusted cooperative environment, where data sensitivity parameters and security requirements of processes are taken into account. The phases are illustrated and a reference example is presented in a cooperative information system and e-applications. An architecture for trusted exchange of data in cooperative information system is proposed. The requirements analysis phase is presented in detail.

scholarly journals ANALYSIS OF REQUIREMENTS FOR CONSTRUCTING THE SCIENTIFIC INFORMATION SYSTEM PROTOTYPE

2019 ◽  
pp. 32-38
Author(s):  
Yu. V. Leonova ◽  
A. M. Fedotov
Keyword(s):  
Information System ◽  
Information Systems ◽  
Information Needs ◽  
Scientific Information ◽  
Scientific Research ◽  
Functional Requirements ◽  
Distributed Information Systems ◽  
Distributed Information ◽  
External Sources ◽  
System Prototype

The article describes technological approaches used to create distributed information systems supporting scientific research. Architectural solutions intended to create such systems and principles for integrating these systems with external sources are considered. Functional requirements for the model of scientific information system (SIS), conditioned, firstly, by the researchers’ information needs, and secondly, by the necessity to ensure a reliable and longterm storage of information, are determined. Rules for presenting and transforming metadata are examined.

scholarly journals Intellectual Analysis of Spatial Data for Information Support in Management of Technical Component of Complex Distributed Information Systems

2021 ◽  
Author(s):  
Elena Brekotkina ◽  
Ramil Gilyazov ◽  
Sergey Pavlov ◽  
Vladislav Trubin ◽  
Olga Khristodulo
Keyword(s):  
Information System ◽  
Information Systems ◽  
Distributed Systems ◽  
Spatial Data ◽  
Spatial Data Mining ◽  
Information Support ◽  
Mutual Arrangement ◽  
Management Support ◽  
Distributed Information Systems ◽  
Distributed Information

Management of complex distributed systems, at present, is carried out using information systems designed to collect and manage a large amount of heterogeneous information of an organization or institution. The technical component of such information systems is itself a complex distributed system, and information about the location and mutual arrangement of its individual components, as well as the location of the associated infrastructure and main users, is essential for its high-quality functioning. A method of spatial data mining that suggested in this paper, proposed for formalizing the process of creating specialized databases for the implementation (creation) of individual subsystems as part of complex distributed information systems. The results of the application of this method for the construction of one of the subsystems, namely, the subsystem of information support for the management of the technical component of the information system, as part of a complex distributed information system, are presented on the example of the geoinformation system of the Ufa State Aviation Technical University. The proposed approach to intelligent analysis and representation of spatial data, consisting in a formalized description of various thematic data applied to solving specific problems of information management support in complex distributed systems, can be applied to the construction of complex information systems in significantly distributed organizational and infrastructure.

Analysis of the advantages of using blockchain platforms in the design of distributed information systems

2021 ◽  
pp. 19-22
Author(s):  
K.S. Romanenko ◽  
◽  
A. S. Sviridov
Keyword(s):  
Information System ◽  
Information Systems ◽  
Distributed Systems ◽  
Business Logic ◽  
Distributed Information Systems ◽  
Distributed Information ◽  
Interaction Interface

In this article, we will consider the analysis of existing blockchain platforms for use in the design of distributed information systems. Typical components of an information system, such as working with data, business logic, interaction interface can be implemented on the basis of blockchain platforms, which can be factors in the development of technologies for building distributed systems. Currently, there are a large number of blockchain platforms that perform various tasks, proposed to analyze their capabilities to achieve this goal.

scholarly journals Development of queries using the Z39.50 protocol in distributed information systems to support scientific and educational activities

2021 ◽  
Vol 5 (2 (113)) ◽  
pp. 66-79
Author(s):  
Sandugash Serikbayeva ◽  
Jamalbek Tussupov ◽  
Madina Sambetbayeva ◽  
Gaukhar Muratova ◽  
Mukhtar Makhanov ◽  
...  
Keyword(s):  
Information System ◽  
Information Systems ◽  
Access Control ◽  
Information Exchange ◽  
Information Resources ◽  
Distributed Information Systems ◽  
Distributed Resources ◽  
Educational Activities ◽  
Distributed Information ◽  
Information Server

Distributed information systems that support scientific and educational activities can work with various information systems. The main goal of creating a distributed information system supporting scientific and educational activities is to accelerate the pace and improve the quality of information exchange in the scientific environment. The paper considers technological methods for constructing models of information systems designed to support scientific and educational activities. The model under consideration is that the developed model of an information system for working with scientific materials should solve the problems of long-term storage of information, organizing data search by attributes, accumulating and replacing metadata. Based on the analysis of typical scenarios of information servers, the tasks that should be solved when organizing an access control system for distributed information resources are formulated. Within the framework of this technology, three access control models are discussed, which differ in the degree of integration of information server functions with the Z39.50 technologies. The creation and support of distributed information systems and electronic libraries that integrate heterogeneous information resources and operate in various software and hardware environments require special approaches to managing these systems. If the resources or data themselves can be managed locally, even for distributed information systems, then the task of managing access to distributed resources cannot be solved within the framework of local administration. The justification of the last thesis can be seen when considering typical scenarios of the information server, which we will describe below

Methodology of logical design of information support for distributed information systems of critical application

2021 ◽  
Vol 14 (3) ◽  
pp. 67-73
Author(s):  
Valeriy Suhanov ◽  
Oleg Lankin
Keyword(s):  
Information System ◽  
Information Systems ◽  
Information Technologies ◽  
Control Object ◽  
Information Support ◽  
Distributed Information Systems ◽  
Historical Aspect ◽  
Distributed Information ◽  
New Information ◽  
Logical Design

One of the most promising new information technologies is analytical databases that allow us to analyze the dynamics of the behavior of the control object in the historical aspect. The introduction of analytical databases increases the efficiency of information systems. In particular, one of the criteria for effectiveness is the security of an information system, on which analytical databases have a fairly significant impact, which at first glance is not obvious. In the material of this article, the problems of organizing and implementing security in analytical databases will be considered, as well as the method of logical design of information support for distributed information systems of critical application under the prism of ensuring the security of this system.

scholarly journals Mathematical model for optimizing distributed information systems

2020 ◽  
Vol 1679 ◽  
pp. 022100
Author(s):  
A N Mazalov ◽  
A V Yakovlev ◽  
V V Alekseev ◽  
I S Gaidashov
Keyword(s):  
Mathematical Model ◽  
Information Systems ◽  
Distributed Information Systems ◽  
Distributed Information

scholarly journals A Survey on Distributed Information Systems using Semantic Web Techniques

2019 ◽  
Vol 12 (1) ◽  
pp. 24-32
Author(s):  
Syed Farhan Mohsin, Syed Imran Jami
Keyword(s):  
Information System ◽  
Information Systems ◽  
Semantic Web ◽  
Theoretical Framework ◽  
Research Trends ◽  
Distributed Environment ◽  
Distributed Information Systems ◽  
Distributed Information System ◽  
Distributed Information

Semantic web is the growing field whose integration with Distributed Information System helps it in gluing technology. The framework of Semantic web deals with the representation, logic, rules and trust. We in this work surveyed the representation aspect of Semantic web by exploring ontologies proposed in various domains in the last three years. We observed that the research trends in semantic web for distributed information system is going in two directions i) theoretical framework ii) development of ontologies across different domains. We limited our work towards the domain of distributed information systems. Several detailed ontologies have been identified that are developed for integration with distributed information system across different domains. We conclude that ontologies need extensive work in its foundation, while more domains should be further explored in the development of robust information system in distributed environment.

A Methodology for Developing Trusted Information Systems

2003 ◽  
pp. 63-96
Author(s):  
Maria Grazia Fugini ◽  
Pierluigi Plebani
Keyword(s):  
Information System ◽  
Information Systems ◽  
Security Requirements ◽  
Mutual Trust ◽  
Distributed Information Systems ◽  
Distributed Information ◽  
Design And Implementation ◽  
Analysis Design ◽  
Data Sensitivity ◽  
Cooperative Processes

In building cooperative distributed information systems, a methodology for analysis, design and implementation of security requirements of involved data and processes is essential for obtaining mutual trust between cooperating organizations. Moreover, when the information system is built as a cooperative set of e-services, security is related to the type of data, to the sensitivity context of the cooperative processes and to the security characteristics of the communication paradigms. This paper presents a methodology to build a trusted cooperative environment, where data sensitivity parameters and security requirements of processes are taken into account. The phases are illustrated and a reference example is presented in a cooperative information system and e-applications. An architecture for trusted exchange of data in cooperative information system is proposed. The requirements analysis phase is presented in detail.

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