A New Methodology of QoS Evaluation and Service Selection for Ubiquitous Computing

  • Yong Zhang
  • ShenSheng Zhang
  • SongQiao Han
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4138)


Ubiquitous Computing (UbiComp) has become a new computing model in computer systems. However, the characteristics of UbiComp, such as context-awareness, mobility and resource-limitedness, pose challenges for service infrastructure to provide effective service provision. In this paper, we present a suit of user-oriented models and methods that support dynamic Quality of Service (QoS) evaluation and adaptive service selection for UbiComp: 1) We propose a user-oriented QoS model with hierarchical structure to achieve scalability and flexibility; 2) An extended context model with time dimension is employed in QoS evaluation; 3) To capture the weights of quality criteria, we design a user preference model based on linguistic variable; 4) We also model QoS evaluation and service selection as the combination of first order logic inference and hierarchical fuzzy logic evaluation. A case study is presented to demonstrate the effectiveness of our approach.


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  1. 1.
    Zhu, F., Mutka, M.W., Ni, L.M.: Service Discovery in Pervasive Computing Environments. IEEE Pervasive Computing 4, 81–90 (2005)CrossRefGoogle Scholar
  2. 2.
    Houssos, N., Alonistioti, A., Merakos, L., Mohyeldin, E., Dillinger, M., Fahrmair, M., Schoenmakers, M.: Advanced Adaptability and Profile Management Framework for the Support of Flexible Mobile Service Provision. IEEE Wireless Communications 10, 52–61 (2003)CrossRefGoogle Scholar
  3. 3.
    Project of Adaptive Service Provision Framework,
  4. 4.
    De Moor, A., Van Den Heuvel, W.-J.: Web Service Selection in Virtual Communities. In: Proceedings of the Hawaii International Conference on System Sciences, Big Island, HI., United States, vol. 37, pp. 3105–3114 (2004)Google Scholar
  5. 5.
    Chalmers, D., Sloman, M.: A Survey of Quality of Service in Mobile Computing Environments. IEEE Communications Surveys (Second Quarter,1999), 2–10 (1999)Google Scholar
  6. 6.
    Elfatatry, A.: Service-Oriented Software: A Negotiation Perspective. Ph.D. disserta-tion,University of Manchester Institute of Science and Technology, Manchester, U.K. (2002)Google Scholar
  7. 7.
    Ranganathan, A., Campbell, R.H., Ravi, A., Mahajan, A.: ConChat: A Context-Aware Chat Program. IEEE Pervasive Computing 1, 51–57 (2002)CrossRefGoogle Scholar
  8. 8.
    Mantyjarvi, J., Seppanen, T.: Adapting applications in handheld devices using fuzzy context information. Interacting with Computers 15, 521–538 (2003)CrossRefGoogle Scholar
  9. 9.
    Lum, W.Y., Lau, F.C.M.: User-Centric Content Negotiation for Effective Adaptation Service in Mobile Computing. IEEE Transactions on Software Engineering 29, 1100–1111 (2003)CrossRefGoogle Scholar
  10. 10.
    Zimmermann, H.J.: Fuzzy Set Theory and its Applications, 2nd edn. Kluwer Academic Publishers, Dordrecht (1991)zbMATHGoogle Scholar
  11. 11.
    Schilit, B., Adams, N., Want, R.: Context-aware computing applications. In: Mobile Computing Systems and Applications - Workshop Proceedings, Santa Cruz, CA, USA, pp. 85–90 (1995)Google Scholar
  12. 12.
    Chen, H., Finin, T., Joshi, A.: An ontology for context-aware pervasive computing environments. Knowledge Engineering Review 18, 197–207 (2003)CrossRefGoogle Scholar
  13. 13.
    Menasce, D.A.: QoS Issues in Web Services. IEEE Internet Computing 6 (2002)Google Scholar
  14. 14.
    Liu, Y., Ngu, A.H.H., Zeng, L.: QoS computation and policing in dynamic web service selection. In: 13th International World Wide Web Conference Proceedings, WWW 2004, New York, NY, United States, pp. 798–805 (2004)Google Scholar
  15. 15.
    Maximilien, E.M., Singh, M.P.: A framework and ontology for dynamic web services selection. IEEE Internet Computing 8, 84–93 (2004)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Yong Zhang
    • 1
  • ShenSheng Zhang
    • 1
  • SongQiao Han
    • 1
  1. 1.Department of Computer Science and EngineeringShanghai Jiao Tong UniversityShanghaiChina

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