A WSDL Extension for Performance-Enabled Description of Web Services

  • Andrea D’Ambrogio
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3733)


Web services are the building blocks of the emerging computing paradigm based on service-oriented architectures. A web service is a self-describing, open component that supports rapid composition of distributed applications. Web service definitions are used to describe the service capabilities in terms of the operations of the service and the input and output messages for each operation. Such definitions are expressed in XML by use of the Web Service Definition Language (WSDL). Unfortunately, a WSDL description only addresses the functional aspects of a web service without containing any useful description of non-functional or quality of service characteristics. This paper addresses the performance attribute of quality of service and introduces a WSDL extension for the description of performance characteristics of a web service. The extension is carried out as a metamodel transformation, according to principles and standards recommended by the Model Driven Architecture (MDA). The WSDL metamodel is introduced and then transformed into the P-WSDL (Performance-enabled WSDL) metamodel. The proposed P-WSDL extension can effectively be used to specify performance requirements of web services, to describe performance data measured on given web services, to add performance-oriented characteristics when querying registries of web services, to ease the derivation of performance models of web services and to support the automated mapping from WSDL documents to P-WSDL ones and from UML models to P-WSDL web services.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Bezivin, J., Hammoudi, S., Lopes, D., Jouault, F.: An Experiment in Mapping Web Services to Implementation Platforms, Atlas Group, INRIA and LINA University of Nantes, Research Report (March 2004)Google Scholar
  2. 2.
    Bordbar, B., Staikopoulos, A.: Automated Generation of Metamodels for Web service Languages. In: Proceedings of the Second European Workshop on Model Driven Architecture (MDA), Canterbury, UK, September 7–8 (2004)Google Scholar
  3. 3.
    Box, D., Curbera, F., Hondo, M., Kale, C., Langworthy, D., Nadalin, A., Nagaratnam, N., Nottingham, M., von Riegen, C., Shewchuk, J.: Web Services Policy Framework, WS-Policy (2003),
  4. 4.
    Catania, N., Kumar, P., Murray, B., Pourhedari, H., Vambenepe, W., Wurster, K.: Web Services Management Framework, Version 2.0, Hewlett-Packard (2003),
  5. 5.
    D’Ambrogio, A.: A Model Transformation Framework for the Automated Building of Performance Models from Software Models. In: Proc. of the 5th International Workshop on Software and Performance (WOSP 2005), Palma de Mallorca, Spain (July 2005)Google Scholar
  6. 6.
    D’Ambrogio, A., Conticelli, L., Fondi, A.: An Environment for Measuring the Performance of Web Services. Technical Report RI.05.04, Software Engineering Lab., Dept. Computer Science, University of Roma TorVergata, Roma, Italy (February 2005)Google Scholar
  7. 7.
    Frankel, D., Parodi, J.: Using Model-Driven Architecture to Develop Web Services, 2nd edn. IONA Technologies PLC White Paper (April 2002)Google Scholar
  8. 8.
    Ludwig, H., Keller, A., Dan, A., King, R., Franck, R.: Web Service Level Agreement (WSLA) Language Specification. Version 1.0, IBM Corporation (January 2003),
  9. 9.
    Ludwig, H.: Web Services QoS: External SLAs and Internal Policies - Or: How do we deliver what we promise? In: 4th IEEE International Conference on Web Information Systems Engineering, WISE 2003 Workshops, Roma, Italy, December 13 (2003)Google Scholar
  10. 10.
    Martin, D., Burstein, M., Lassila, O., Paolucci, M., Payne, T., McIlraith, S.: Describing Web Services using OWL-S and WSDL (2004),
  11. 11.
    Menascé, D.A.: QoS Issues in Web Services. IEEE Internet Computing, 72–75 (November/December 2002)Google Scholar
  12. 12.
    Microsoft: The Duwamish 7.0 Enterprise Application,
  13. 13.
    OMG: UML Profile for Scheduling, Performance and Time, v. 1.0 (2003)Google Scholar
  14. 14.
    OMG: Request for Proposal: MOF 2.0 Query / View / Transformations (2002),
  15. 15.
    OMG: MDA Guide. version 1.0.1 (June 2003)Google Scholar
  16. 16.
    OMG: Meta Object Facility (MOF) Specification. version 1.4 (April 2002)Google Scholar
  17. 17.
    OMG: XML Metadata Interchange (XMI) Specification. version 2.0 (May 2003)Google Scholar
  18. 18.
    Papazoglou, M.P., Georgakopoulos, D.: Service-oriented computing. Communications of the ACM 46(10), 25–28 (2003)CrossRefGoogle Scholar
  19. 19.
    Petriu, D.B., Woodside, M.: A Metamodel for Generating Performance Models from UML Designs. In: Baar, T., Strohmeier, A., Moreira, A., Mellor, S.J. (eds.) UML 2004. LNCS, vol. 3273, pp. 41–53. Springer, Heidelberg (2004)Google Scholar
  20. 20.
    Tosic, V., Pagurek, B., Patel, K.: WSOL – A Language for the Formal Specification of Classes of Service for Web Services. In: Proceedings of the 2003 International Conference on Web Services, Las Vegas, USA, pp. 375–381 (2003)Google Scholar
  21. 21.
    Verma, K., Sivashanmugam, K., Sheth, A., Patil, A., Oundhakar, S., Miller, J.: METEOR-S WSDI: A scalable P2P infrastructure of registries for semantic publication and discovery of web services. Inf. Tech. and Management 6(1), 17–39 (2005)CrossRefGoogle Scholar
  22. 22.
    WWW Consortium, Web Services Description language (WSDL). version 2.0, W3C Working Draft (August 2004),
  23. 23.
    WWW Consortium, XML Schema. W3C Recommendation,

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Andrea D’Ambrogio
    • 1
  1. 1.Dept. of Computer Science and SystemsUniversity of Roma “Tor Vergata”RomaItaly

Personalised recommendations