Existing approaches on Web services privacy dominate solutions from a users' perspective, giving little consideration to the preferences of Web service providers. The integration of service providers' preferences into Web services' operations is discussed in this paper. A Web service provider indicates peer Web services that it could interact with as well as the data that they could exchange with. We focus on Privacy and (trust) Partnership preferences based on which, we develop a Specification for Privacy and Partnership Preferences (S3P). This specification suggests a list of exceptional actions to deploy at run-time when these preferences are not met. An integration model of these preferences into Web services design is illustrated throughout a running scenario, and an implementation framework proves the S3P concept. Towards an Approach for Weaving Preferences into Web Services Operation (PDF Download Available). Available from: https://www.researchgate.net/publication/235724905_Towards_an_Approach_for_Weaving_Preferences_into_Web_Services_Operation [accessed Mar 22, 2016].