Dissertation > Excellent graduate degree dissertation topics show

Research on System of Service Web-Oriented E-government

Author: QiYuSong
Tutor: ShiXiangQuan
School: Nanjing University of Technology and Engineering
Course: Information and Communication Engineering
Keywords: E-government services composition mobile agent heterogeneous message ontology access control
CLC: TP311.52
Type: PhD thesis
Year: 2007
Downloads: 1036
Quote: 1
Read: Download Dissertation


Electronic government based on Internet is becoming the new government mode. For the heterogeneous and autonomy of different business system, linking and cooperative working is difficult. Ontology-Driven Service Web-Oriented Multilayered Architecture (ODSOMA) architecture is proposed which integrates dispersive and loosely coupled sub-systems into a uniform application system. The main results are as follows.(1) Service-oriented application integration. A behavior based transition model is employed to describe web services, extending the original description, so that reusing is supported. Through a deep study of the automatic service composition based on PDL, the shortcoming of the approach is presented and a novel automatic service composition based on "virtual service" is proposed. Importing "virtual service" can resolve the selecting problem in the PDL based automatic service composition systems, so that it can achieve the composition tasks much better.(2) Mobile Agent based orchestration of the service composition system. There are a lot of advantages of mobile agent to achieve the composite service. It not only supports the innovation of the composition process, but also decreases the bandwidth distinctively. The latter is very important to support the service composition in a pervasive environment, because the bandwidth is relatively small and the connection is not stable. The formal definitions of Agent and the composition process are proposed. And section 4 also gives the matching rules from the process to the task of Agent and the algorithms from the Agent’s task to its physical behaviors.(3) Heterogeneous message transformation based on previous knowledge. Although the heterogeneous applications are wrapped as web services, only the syntax heterogeneities are resolved while the semantic conflicts still exist. A transformation mechanism for resolving the heterogeneous messages is proposed in this paper. During the execution of the process of web services, the converting engine can automatically pick up useful messages from the intermediate results of previous services and convert them into the desired format, so that they can be composed into the request message to invoke the following web services.(4) Security model based on identity authentication and access control. This thesis also presents a detailed study of the network security of the E-government. And then, combined with the security requirements of E-government WebFilter, an integrative platform for identity authentication and access control of E-government is proposed. The design pattern, function and components of the platform are given in detail, the key technology of the platform and the methodology of how to achieve are described too. Actually, this platform builds a safe way for transforming data between client and server, and it also give an effective mechanism for the safety of the other Internet based applications.

Related Dissertations

  1. Study on Channel Allocation of Multi-Channel MAC Protocol in Ad-Hoc Network,TN929.5
  2. The Design and Implementation of DICOM Middle Software and Access Control Model in Formation Integration Platform,TP311.13
  3. Study on Chinese Local Service-oriented Government Building,D625
  4. The Research on Interaction in the Public Crisis of Government and the News Media in China,D630
  5. The improvement of environmental responsibility of our government,D922.68
  6. Philosophy Thinking on the Corruption Combating and Clean Government Building in the New Period,D262.6
  7. A Discussion on the Local Government’s Ethical Decision-Making,D625
  8. "Social Agent": between Active and Inactive,D625
  9. Study on Current Situation and Constructive Suggestions of Establishment of Our Service-Oriented Government,D630
  10. A Study of Zhu Xi’s Thoughts on Politics and Administration,B244.7
  11. Researcg of Local Government Credit Construction,D630.1
  12. The Rural Masses Event and Grassroots Government’s Countermeasures Study,D631.4
  13. Research of Communication Mechanism in the Distributed Network Based on Mobile Agent,TP393.02
  14. Open government environmental information Legal Issues,D922.68
  15. A Comparative Study about Public Relations Mode on Network of Local Government,D035.5
  16. An Exploration of the Decision-making Mechanism for a Service-oriented Government,D035
  17. The Research on Regulation Reform for Chinese Administrative Monopoly,D035
  18. The Study of China’s Government Failure in the Process of Land Acquisition,D630
  19. Building the Government Image in Public Emergency,D630
  20. The Research on Innovation of BDA’s Public Service System for Enterprises,D630
  21. The Effect of Instruction for Middle School with Philosophy,G633.6

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Software Engineering > Software Development
© 2012 www.DissertationTopic.Net  Mobile