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Conference papers

Adaptable OPC-XML contracts taking into account network traffic

Mohamed Khalgui 1 Xavier Rebeuf 1 Francesco Zampognaro 2
1 TRIO - Real time and interoperability
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : OPC-XML defines a standard method for accessing automation data in the industry field. This protocol relies on web service communications allowing a great compatibility and a software/hardware independent definition. Nevertheless, this underlying protocol does not take into account temporal Quality of Service. Therefore, when a contract is defined between the client and the server, its execution has to be monitored to check if expected temporal properties are respected. In this paper, we propose to enrich the contract definition in order to define mandatory and optional quality of service. We propose an observation mechanism for the network congestion detection. Thanks to this information, it is possible to dynamically adapt the QoS to preserve the mandatory properties.
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Contributor : Mohamed Khalgui <>
Submitted on : Friday, November 18, 2005 - 11:36:24 AM
Last modification on : Friday, February 26, 2021 - 3:28:07 PM


  • HAL Id : inria-00000441, version 1



Mohamed Khalgui, Xavier Rebeuf, Francesco Zampognaro. Adaptable OPC-XML contracts taking into account network traffic. 10th IEEE International Conference on Emerging Technologies and Factory Automation - ETFA'2005, Sep 2005, Catania/Italy. ⟨inria-00000441⟩



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