AMPol-Q: Adaptive middleware policy to support QoS

Raja Afandi, Jianqing Zhang, Carl A. Gunter

Research output: Chapter in Book/Report/Conference proceedingConference contribution


There are many problems hindering the design and development of Service-Oriented Architectures (SOAs), which can dynamically discover and compose multiple services so that the quality of the composite service is measured by its End-to-End (E2E) quality, rather than that of individual services in isolation. The diversity and complexity of QoS constraints further limit the wide-scale adoption of QoS-aware SOA. We propose extensions to current OWL-S service description mechanisms to describe QoS information of all the candidate services. Our middleware based solution, AMPol-Q, enables clients to discover, select, compose, and monitor services that fulfil E2E QoS constraints. Our implementation and case studies demonstrate how AMPol-Q can accomplish these goals for web services that implement messaging.

Original languageEnglish (US)
Title of host publicationService-Oriented Computing - ICSOC 2006 - 4th International Conference, Proceedings
Number of pages14
StatePublished - 2006
Event4th International Conference on Service-Oriented Computing, ICSOC 2006 - Chicago, IL, United States
Duration: Dec 4 2006Dec 7 2006

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4294 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other4th International Conference on Service-Oriented Computing, ICSOC 2006
Country/TerritoryUnited States
CityChicago, IL


  • AMPol-Q
  • Adaptive middleware
  • Dynamic service discovery
  • Ontologies
  • Policy
  • QoS
  • Security
  • Service oriented architecture
  • WSEmail

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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