This paper proposes an effective Web services (WS) transaction management framework to automatically manage inconsistencies occurred by relaxing isolation of WS transactions. Categories and Subject Descriptors H.2.4 [Database Management]: Systems ? Transaction processing; H.3.4 [Information Storage and Retrieval]: Systems and Software ? Distributed systems; H.3.5 [Information Storage and Retrieval]: Online Information Services ? Webbased services General Terms Management, Design, Reliability Keywords Web services, Transaction model, Transaction management protocol, Isolation relaxation.