With emergent growing use of Internet, Web services become increasingly popular and their growth rate surpasses even the most optimistic predictions. Services are self-descriptive, self-contained, platform-independent and openly available components that interact over the network. They are written strictly according to open specifications and/or standards and provide important and often critical functions for many business-to-business systems. The analysis of failure stages of web-services is presented. The matrix of correspondence between fault-
