scholarly journals Trusted Data Exchange Concept

2021 ◽  
Vol 7 (7) ◽  
pp. 164-173
Author(s):  
A. Voronin
Keyword(s):  
Information Systems ◽  
Data Exchange ◽  
Automated Systems ◽  
Heterogeneous Information ◽  
Trusted Data

The paper considers main problems of the possibilities of implementing mechanisms for exchanging heterogeneous information between information systems and automated systems of the enterprise. The system of trusted data exchange concept defined.

scholarly journals Towards a Trusted and Unified Consortium-Blockchain-Based Data Sharing Infrastructure for Open Learning—TolFob Architecture and Implementation

2021 ◽  
Vol 13 (24) ◽  
pp. 14069
Author(s):  
Jun Xiao ◽  
Yi Jiao ◽  
Yin Li ◽  
Zhujun Jiang
Keyword(s):  
Information Systems ◽  
Data Sharing ◽  
Educational Institutions ◽  
Production Environment ◽  
Open Learning ◽  
Integration Framework ◽  
Heterogeneous Information ◽  
Management Application ◽  
Trusted Data ◽  
Test Result

Open learning is now facing a complex higher education ecosystem that involves a variety of heterogeneous information systems and comprises decentralized stakeholders, such as universities, professors, students, and software vendors. Authentic, non-repudiable, and fast available data sharing among open learning information systems and stakeholders is a key issue that remains unresolved. To solve this problem, this paper proposes a consortium blockchain extended architecture featuring integration and cross-chain functions to provide a unified and trusted data-sharing infrastructure for open learning. The overall architecture consists of three elements: a blockchain-integrated open learning scenario schema; a blockchain-integrated open learning application model; and a pragmatic blockchain integration framework. The proposed blockchain integration framework is implemented based on Hyperledger Fabric 1.4. A trusted open-learning behavior and achievement management application is developed as a proof-of-concept which integrates two educational institutions’ four productional learning systems into a blockchain network and has stably run over six months. A suite of experiments is designed and executed to verify our blockchain system’s viability and scalability. The test result shows the implementation of the blockchain system is competent for the production environment and outperforms related works investigated. However, it does have limitations and optimization potential, which will be studied in the future.

Modeling and design of role engineering in development of access control for dynamic information systems

2013 ◽  
Vol 61 (3) ◽  
pp. 569-579 ◽  
Author(s):  
A. Poniszewska-Marańda
Keyword(s):  
Information Systems ◽  
Dynamic Information ◽  
Minimal Set ◽  
Distributed Information ◽  
Heterogeneous Information ◽  
System Protection ◽  
Level Model ◽  
Model Independent ◽  
Role Concept ◽  
High Level

Abstract Nowadays, the growth and complexity of functionalities of current information systems, especially dynamic, distributed and heterogeneous information systems, makes the design and creation of such systems a difficult task and at the same time, strategic for businesses. A very important stage of data protection in an information system is the creation of a high level model, independent of the software, satisfying the needs of system protection and security. The process of role engineering, i.e. the identification of roles and setting up in an organization is a complex task. The paper presents the modeling and design stages in the process of role engineering in the aspect of security schema development for information systems, in particular for dynamic, distributed information systems, based on the role concept and the usage concept. Such a schema is created first of all during the design phase of a system. Two actors should cooperate with each other in this creation process, the application developer and the security administrator, to determine the minimal set of user’s roles in agreement with the security constraints that guarantee the global security coherence of the system.

UNIFICATION OF DATA FORMATS IN THE IMPLEMENTATION OF THE ANALYTICAL COMPONENT OF INFORMATION SYSTEMS IN THE FIELD OF COMMUNICATIONS AND BROADCASTING

2021 ◽  
Author(s):  
Е.Е. ДЕВЯТКИН ◽  
М.В. ИВАНКОВИЧ ◽  
М.Н. КУПИН
Keyword(s):  
Information Systems ◽  
Research Work ◽  
Automated Systems ◽  
Functional Capabilities ◽  
Data Formats ◽  
Analytical System

Представлены результаты исследовательской работы по унификации форматов данных,которые требуются при реализации аналитической составляющей в структуре информационных систем, предназначенных для решения экспертно-прогностических задач в сфере связи и вещания. По результатам анализа существующих в отрасли основных автоматизированных систем, их функциональных возможностей обоснована необходимость введения в действующие и перспективные системы аналитической составляющей и унификации форматов данных как непременного условия их взаимодействия. Рассматривается набор унифицированных форматов данных, разработанный для перспективного макета аналитической системы развития связи и вещания. The results of research work on unifying the data formats that are required for the implementation of the analytical component in the structure of information systems intended for the solution of expert predictive problems in the sphere of communications and broadcasting are presented. Based on the results of the analysis of the main automated systems and their functional capabilities the necessity of introducing an analytical component into existing and future systems as well as unifying data formats as an indispensable condition for their interaction is substantiated. A set of unified data formats developed for a promising layout of an analytical system for the development of communications and broadcasting is considered.

scholarly journals Interoperability in Healthcare

2017 ◽  
pp. 689-714 ◽  
Author(s):  
Luciana Cardoso ◽  
Fernando Marins ◽  
César Quintas ◽  
Filipe Portela ◽  
Manuel Santos ◽  
...  
Keyword(s):  
Information Systems ◽  
Patient Information ◽  
Swot Analysis ◽  
Medical Information ◽  
Healthcare Delivery ◽  
Quality Of Healthcare ◽  
High Availability ◽  
Heterogeneous Information ◽  
Multi Agent

With the advancement of technology, patient information has been being computerized in order to facilitate the work of healthcare professionals and improve the quality of healthcare delivery. However, there are many heterogeneous information systems that need to communicate, sharing information and making it available when and where it is needed. To respond to this requirement the Agency for Integration, Diffusion, and Archiving of medical information (AIDA) was created, a multi-agent and service-based platform that ensures interoperability among healthcare information systems. In order to improve the performance of the platform, beyond the SWOT analysis performed, a system to prevent failures that may occur in the platform database and also in machines where the agents are executed was created. The system has been implemented in the Centro Hospitalar do Porto (one of the major Portuguese hospitals), and it is now possible to define critical workload periods of AIDA, improving high availability and load balancing. This is explored in this chapter.

scholarly journals Communication In Complex Information System Development Projects

10.28945/2356 ◽  
2001 ◽  
Author(s):  
Zeljko Hutinski ◽  
Neven Vrcek ◽  
G. Bubas
Keyword(s):  
Information System ◽  
Information Systems ◽  
Data Exchange ◽  
System Development ◽  
Development Projects ◽  
Communication Management ◽  
Complex Information ◽  
Communication Problems ◽  
Complex Information System ◽  
Project Data

The relevance of the communication in the complex information system (IS) development projects is becoming issue of primary importance. Various researches show that many projects failed due to inadequate management of communication. Project data exchange is still not performed in a structured and standardised manner, which leads to misunderstandings between team members. Too many complex IS projects do not have established an adequate project communication management subsystems. This paper analyses results of a survey performed on information technology (IT) professionals and presents degree of communication problems during various project phases. (This research was supported by the Croatian Ministry of Science and Technology under projects: "Strategic planning of Information Systems" and "Information Systems Security.) It reveals that average rating of a degree of communication problems varies at different project stages and among different communication subjects. The paper also proposes software tools that, if properly used, might enhance project communication. Such technologies are still not completely mature but they are developing fast and might play an important role in project management, by providing support to its holism.

Solving Semantic Interoperability Conflicts in Cross-Border E-Government Services

2011 ◽  
pp. 1-47 ◽  
Author(s):  
Adrian Mocan ◽  
Federico M. Facca ◽  
Nikolaos Loutas ◽  
Vassilios Peristeras ◽  
Sotirios K. Goudos ◽  
...  
Keyword(s):  
Information Systems ◽  
Web Service ◽  
Enterprise Architecture ◽  
Semantic Interoperability ◽  
Process Models ◽  
Government Information ◽  
Heterogeneous Information ◽  
Government Services ◽  
Cross Border ◽  
Organizational Information

Interoperability is one of the most challenging problems in modern cross-organizational information systems, which rely on heterogeneous information and process models. Interoperability becomes very important for e-Government information systems that support cross-organizational communication especially in a cross-border setting. The main goal in this context is to seamlessly provide integrated services to the user (citizen). In this paper we focus on Pan European e-Services and issues related with their integration. Our analysis uses basic concepts of the generic public service model of the Governance Enterprise Architecture (GEA) and of the Web Service Modeling Ontology (WSMO), to express the semantic description of the e-services. Based on the above, we present a mediation infrastructure capable of resolving semantic interoperability conflicts at a pan-European level. We provide several examples to illustrate both the need to solve such semantic conflicts and the actual solutions we propose.

Towards an Operational REA Business Ontology

2009 ◽  
pp. 222-243
Author(s):  
Frederik Gailly
Keyword(s):  
Supply Chain ◽  
Information Systems ◽  
System Development ◽  
Semantic Integration ◽  
Ontology Development ◽  
Supply Chain Collaboration ◽  
Formal Representation ◽  
Heterogeneous Information ◽  
Business Information Systems ◽  
Business Information

It is widely recognized that ontologies can be used to support the semantic integration and interoperability of heterogeneous information systems. Resource Event Agent (REA) is a well-known business ontology that was proposed for ontology-driven enterprise system development. However, the current specification is neither sufficiently explicit nor formal, and thus difficult to operationalize for use in ontology- driven business information systems. In this chapter REA is redesigned and formalized following a methodology based on the reengineering extension of the METHONTOLOGY framework for ontology development. The redesign is focused on developing a UML representation of REA that improves upon existing representations and that can easily be transformed into a formal representation. The formal representation of REA is developed in OWL. The chapter discusses the choices made in redesigning REA and in transforming REA’s UML representation into an OWL representation. It is also illustrated how this new formal representation of the REA-ontology can be used to support ontology-driven supply chain collaboration.

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