  Web Service is one of the most important information sharing technologies on
the web and one of the example of service oriented processing. To guarantee
accurate execution of web services operations, they must be accountable with
regulations of the social networks in which they sign up. This operations
implement using controls called 'Commitment'. This paper studies commitments,
then has an overview on existing researches, web service execution method using
commitments and information sharing methods between web services based on
commitments and social networks. A key challenge in this technique is
consistency ensuring in execution time. The aim of this study is presenting an
algorithm for consistency ensuring between commitments. An application designed
for proving correctness of algorithm.
