Quality service assignments for role-based web services

Vincent To Yee Ng, Boris Chan, Ringo Tsang, Louis L.Y. Shun

Research output: Journal article publicationConference articleAcademic researchpeer-review

4 Citations (Scopus)


Many collaborative systems involve business processes and workflows performed on the web. Users would need to issue web service requests to complete their business transactions. The requests are of different types and priorities according to their roles in their respective business processes. One immediate problem is to ensure the timely and cost effective completion of the requests. In this paper, we have proposed to utilize service brokers for adequately assigning online continuous incoming service requests so as to achieve some pre-defined optimization goals. Here, the aim is to minimize the number of service providers required to fulfill the requests from the users. With this goal, the service broker can reduce the costs of service providers with the Semi-online Pseudo-open Multi-dimensional Vector-bin-packing (SoPomVa) algorithm. Preliminary experiments have been conducted to investigate the effectiveness of the SoPomVa proposed in comparison with some traditional bin packing algorithms and good performance results are obtained.
Original languageEnglish
Article number4811622
Pages (from-to)2219-2224
Number of pages6
JournalConference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
Publication statusPublished - 1 Dec 2008
Event2008 IEEE International Conference on Systems, Man and Cybernetics, SMC 2008 - Singapore, Singapore
Duration: 12 Oct 200815 Oct 2008


  • Role-based collaborative system
  • Service assignment
  • Vector bin-packing
  • Web services

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Human-Computer Interaction


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