Аннотация
Self-healing software, and especially self-healing web services, is one of the chal-
lenging tasks for a next future. This paper is a step in this direction, insofar as it describes
a framework for monitoring and diagnosing web services. One of the main diculties is that
faults may propagate from one service to another, which makes the diagnosis a crucial issue in
order to react properly. We propose to use a chronicle recognition approach, currently in use for
monitoring complex industrial systems. The challenge is to extend the existing approach to the
specic context of web services, the main point being to deal with highly distributed systems.
We focus in this paper on choreographed web services, whose choreography model is described
in a WS-CDL le.
We use a simplied example of an e-foodshop web service to illustrate our proposal. A monitoring
platform, named Matrac, has been developed and experimented in the context of e-commerce.
This work has been achieved in the framework of the WS-Diamond European project.
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