Vyacheslav S. Kharchenko

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Exception handling is one of the popular means used for improving dependability and supporting recovery in the Service-Oriented Architecture (SOA). This practical experience paper presents the results of error and fault injection into Web Services. We summarize our experiments with the SOA-specific exception handling features provided by the two development(More)
Achieving high dependability of Web Services (WSs) dynamically composed from component WSs is an open problem. One of the main difficulties here is due to the fact that the component WSs can and will be upgraded online, which will affect the dependability of the composite WS. The paper introduces the problem of component WS upgrade and proposes solutions(More)
is paper reports our practical experience of benchmarking a complex System Biology Web Service, and investigates the instability of its behaviour and the delays induced by the communication medium. We present the results of our statistical data analysis and distributions which fit and predict the response time instability typical of Service-Oriented(More)
The method of choice of the software reliability models based on the analysis of assumptions and compatibility both input and output parameters is offered. This method is illustrated on the software reliability growth models (SRGM). The classification SRGM is carried out and its accordance to the known classifications is ascertained. The approach to build(More)
In this paper we present our practical experience in benchmarking a number of existing Web Services, and investigating the instability of their performance and the delays induced by the communication medium. We provide the results of statistical data analysis and discuss a technique of Web Services performance assessment taking out of the network delays. We(More)