926 research outputs found

    Access control model for WebServices eGovernment infrastructure.

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    Tam Ka Wing Matthew.Thesis (M.Phil.)--Chinese University of Hong Kong, 2003.Includes bibliographical references (leaves 84-89).Abstracts in English and Chinese.Acknowledgement --- p.iAbstract --- p.iTable of Contents --- p.iiiChapter 1 --- Introduction --- p.1Chapter 2 --- eGovernment Requirements --- p.5Chapter 2.1 --- Efficient Operation --- p.5Chapter 2.2 --- Citizen-centric Government --- p.7Chapter 2.3 --- Security --- p.10Chapter 2.3.1 --- Confidentiality --- p.10Chapter 2.3.2 --- Integrity --- p.12Chapter 2.3.3 --- Availability --- p.12Chapter 2.4 --- Support of eBusiness --- p.13Chapter 3 --- Webservices for e-Government - A Marriage for Interoperability --- p.15Chapter 4 --- A Webservices Based eGovernment Framework --- p.17Chapter 4.1 --- System Component Model --- p.17Chapter 4.2 --- System Access Model --- p.18Chapter 4.3 --- Security Model --- p.20Chapter 4.3.1 --- Access Right Model --- p.20Chapter 4.3.2 --- Authentication Model --- p.22Chapter 4.4 --- Transaction Model --- p.23Chapter 5 --- eGovernment WebServices Access Control --- p.25Chapter 5.1 --- eGovernment WebService --- p.25Chapter 5.2 --- Request of Access --- p.27Chapter 5.3 --- eGovernment Access Policy --- p.30Chapter 5.3.1 --- Administration Based Policy --- p.32Chapter 5.3.2 --- Legislation Based Policy --- p.33Chapter 6 --- Research in Access Control --- p.38Chapter 6.1 --- Traditional Model --- p.38Chapter 6.2 --- More Advanced Models --- p.39Chapter 6.2.1 --- Role-Based Access Control Model --- p.39Chapter 6.2.2 --- Task-Based Authorisation Control Models --- p.41Chapter 6.2.3 --- Digital Library Authorisation Model --- p.42Chapter 6.3 --- Recent Works --- p.44Chapter 6.4 --- Limitations of the Models --- p.45Chapter 7 --- Proposed Approach --- p.47Chapter 7.1 --- WebService Specific Access Control --- p.48Chapter 7.1.1 --- WebService Access Rules --- p.48Chapter 7.1.2 --- Authorisation Conflict Resolution --- p.50Chapter 7.2 --- Subject Based Access Control --- p.52Chapter 7.2.1 --- Subject Category --- p.52Chapter 7.2.2 --- Subject Access Rules --- p.53Chapter 7.2.3 --- WebService Registration --- p.55Chapter 7.2.4 --- Authorisation Conflict Resolution --- p.56Chapter 7.3 --- The WebServices --- p.57Chapter 7.4 --- Combining Two Level Access Control --- p.57Chapter 7.5 --- Application to Chained WebService Request --- p.58Chapter 7.6 --- Comparison with the Existing Access Control Models --- p.59Chapter 8 --- An Implementation Reference Model --- p.60Chapter 8.1 --- Some Practical Issues --- p.60Chapter 8.1.1 --- Citizen Privacy --- p.60Chapter 8.1.2 --- Trust between eGovernment Systems --- p.61Chapter 8.1.3 --- Authentication --- p.62Chapter 8.2 --- System Architecture --- p.64Chapter 8.2.1 --- eGovernment WebServices Gateway --- p.65Chapter 8.2.2 --- Authentication Engine --- p.66Chapter 8.2.3 --- Access Control Database --- p.66Chapter 8.2.4 --- Access Control Decision Engine --- p.67Chapter 8.2.5 --- A Working Scenario --- p.67Chapter 8.3 --- Implementation --- p.69Chapter 9 --- Evaluation of the Proposed Mechanism --- p.74Chapter 9.1 --- Application Scenarios --- p.75Chapter 9.1.1 --- Citizen Level Access Right --- p.75Chapter 9.1.2 --- Access Means Based Authorisation --- p.76Chapter 9.1.3 --- Access Right Based on Combination of User and Consumer Identity --- p.77Chapter 9.1.4 --- Legislation Based Access Right --- p.78Chapter 9.1.5 --- Joined-up Government --- p.79Chapter 10 --- Conclusion and Future Directions --- p.81References --- p.8

    IRS-III: A broker-based approach to semantic Web services

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    A factor limiting the take up of Web services is that all tasks associated with the creation of an application, for example, finding, composing, and resolving mismatches between Web services have to be carried out by a software developer. Semantic Web services is a combination of semantic Web and Web service technologies that promise to alleviate these problems. In this paper we describe IRS-III, a framework for creating and executing semantic Web services, which takes a semantic broker based approach to mediating between service requesters and service providers. We describe the overall approach and the components of IRS-III from an ontological and architectural viewpoint. We then illustrate our approach through an application in the eGovernment domain

    Data Ingredients: smart disclosure and open government data as complementary tools to meet policy objectives. The case of energy efficiency.

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    Open government data are considered a key asset for eGovernment. One could argue that governments can influence other types of data disclosure, as potential ingredients of innovative services. To discuss this assumption, we took the example of the U.S. 'Green Button' initiative – based on the disclosure of energy consumption data to each user – and analysed 36 energy-oriented digital services reusing these and other data, in order to highlight their set of inputs. We find that apps suggesting to a user a more efficient consumption behaviour also benefit from average retail electricity cost/price information; that energy efficiency 'scoring' apps also need, at least, structured and updated information on buildings performance; and that value-added services that derive insights from consumption data frequently rely on average energy consumption information. More in general, most of the surveyed services combine consumption data, open government data, and corporate data. When setting sector-specific agendas grounded on data disclosure, public agencies should therefore consider (contributing) to make available all three layers of information. No widely acknowledged initiatives of energy consumption data disclosure to users are being implemented in the EU. Moreover, browsing EU data portals and websites of public agencies, we find that other key data ingredients are not supplied (or, at least, not as open data), leaving room for possible improvements in this arena

    BUSINESS MODELS FOR EGOVERNMENT THE BMeG METHOD

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    So far, business models have been investigated in the context of eCommerce focusing on economic issues but they do not consider the viewpoints of authorities embarking on public private partnerships for citizen services. This paper describes our modelling method BMeG that is dedicated to the planning of business models for eGovernment services. BMeG allows one to model options of value chains with various perspectives including advantages and disadvantages with impacts on policies. BMeG depicts the added value of potential partnerships and thus supports authorities to decide on alliances for public private partnerships or other financing models for eGovernment services

    Modelling legal knowledge for GDPR compliance checking

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    In the last fifteen years, Semantic Web technologies have been successfully applied to the legal domain. By composing all those techniques and theoretical methods, we propose an integrated framework for modelling legal documents and legal knowledge to support legal reasoning, in particular checking compliance. This paper presents a proof-of-concept applied to the GDPR domain, with the aim to detect infringements of privacy compulsory norms or to prevent possible violations using BPMN and Regorous engine

    An Intelligent Knowledge Management System from a Semantic Perspective

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    Knowledge Management Systems (KMS) are important tools by which organizations can better use information and, more importantly, manage knowledge. Unlike other strategies, knowledge management (KM) is difficult to define because it encompasses a range of concepts, management tasks, technologies, and organizational practices, all of which come under the umbrella of the information management. Semantic approaches allow easier and more efficient training, maintenance, and support knowledge. Current ICT markets are dominated by relational databases and document-centric information technologies, procedural algorithmic programming paradigms, and stack architecture. A key driver of global economic expansion in the coming decade is the build-out of broadband telecommunications and the deployment of intelligent services bundling. This paper introduces the main characteristics of an Intelligent Knowledge Management System as a multiagent system used in a Learning Control Problem (IKMSLCP), from a semantic perspective. We describe an intelligent KM framework, allowing the observer (a human agent) to learn from experience. This framework makes the system dynamic (flexible and adaptable) so it evolves, guaranteeing high levels of stability when performing his domain problem P. To capture by the agent who learn the control knowledge for solving a task-allocation problem, the control expert system uses at any time, an internal fuzzy knowledge model of the (business) process based on the last knowledge model.knowledge management, fuzzy control, semantic technologies, computational intelligence

    The Development of eServices in an Enlarged EU: eGovernment and eHealth in Lithuania

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    In 2005, IPTS launched a project which aimed to assess the developments in eGoverment, eHealth and eLearning in the 10 New Member States at national, and at cross-country level. At that time, the 10 New Member States were Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, and Slovakia. A report for each country was produced, describing its government and health systems and the role played by eGovernment and eHealth within these systems. Each report then analyzes, on the basis of desk research and expert interviews, the major achievements, shortcomings, drivers and barriers in the development of eGovernment and eHealth in one of the countries in question. This analysis provides the basis for the identification and discussion of national policy options to address the major challenges and to suggest R&D issues relevant to the needs of each country ¿ in this case, Lithuania. In addition to national monographs, the project has delivered a synthesis report, which offers an integrated view of the developments of each application domain in the New Member States. Furthermore, a prospective report looking across and beyond the development of the eGoverment, eHealth and eLearning areas has been developed to summarize policy challenges and options for the development of eServices and the Information Society towards the goals of Lisbon and i2010.JRC.J.4-Information Societ

    A reference architecture for multi-level SLA management

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    There is a global trend towards service-orientation, both for organizing business interactions but also in modern IT architectures. At the business-level, service industries are becoming the dominating sector in which solutions are flexibly composed out of networked services. At the IT level, the paradigms of Service-Oriented Architecture and Cloud Computing realize service-orientation for both software and infrastructure services. Again, flexible composition across different layers is a major advantage of this paradigm. Service Level Agreements (SLA) are a common approach for specifying the exact conditions under which services are to be delivered and, thus, are a prerequisite for supporting the flexible trading of services. However, typical SLAs are just specified at a single layer and do not allow service providers to manage their service stack accordingly. They have no insight on how SLAs at one layer translate to metrics or parameters at the various lower layers of the service stack. In this paper, we present a reference architecture for a multi-level SLA management framework. We discuss the fundamental concepts and detail the main architectural components and interfaces. Furthermore, we show how the framework can be flexibly used for different industrial scenarios

    Semantic modelling and ontology integration of the open government systems

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    Ontologija otvorene vlade predstavljena u ovom radu je sveobuhvatna ontologija koja za cilj ima modeliranje širokog opsega servisa otvorene vlade. Semantički model otvorene vlade daje mogućnost za integraciju s drugim semantičkim i informatičkim modelima te omogućuje semantičko razmišljanje i pronalaženje resursa. Karakteristike otvorene vlade su transparentnost, sudjelovanje i suradnja. Glavne komponente otvorene vlade su otvorena arhitektura, otvoreni podaci i otvoreni standardi. Organizacijska struktura otvorene vlade sastoji se od unutarnjih vladinih organizacija, povezanih područja i otvorenih (e)vladinih servisa. Ontologija otvorene vlade se može koristiti kao semantičko spremište meta podataka za (e)vladine i otvorene (e)vladine servise. Primjenom formalnih metoda razmišljanja predložena ontologija omogućuje pronalaženje informacija o servisima otvorene (e)vlade i zaključivanje na osnovu prikupljenog znanja. Također, ontologija otvorene arhitekture se može koristiti kao informacijska arhitektura za stvaranje tih servisa, kao u slučaju Crnogorske semantičke naučne mreže.Open Government Ontology proposed in this paper is an extensive ontology aimed at modelling a wide range of Open Government services. Semantic model of the Open Government opens possibilities for the integration with other semantic and information models, and enables semantic reasoning and resource discovery. Characteristics of the Open Government are transparency, participation and collaboration. Main components of the Open Government are Open Architecture, Open Data and Open Standards. Organizational structure of the Open Government consists of the internal government organizations, associated domains and Open (e)Government services. Open Government Ontology can be used as a semantic meta-data repository for the (e)Government and Open (e)Government services. Using formal methods of reasoning with the proposed ontology we can search for information about Open (e)Government services and infer on gathered knowledge. Also Open Architecture Ontology can be used as Information Architecture framework for the creation of these services as was the case regarding Montenegrin Semantic Science Network
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