Abstract: Online Collection and Publication of data about individuals may reveal sensitive information about users. In-line with different access scenarios health-Science data is a known example. When searching for information online atomically the Sensitive data may not be revealed but when integrating the data from different web-servers the sensitive information may be revealed. So privacy policy is needed when accessing data online. XACML is a privacy policy language that is used to provide access control to the users by dynamically evaluating rules and Policies.

Keywords: Context, Data, Privacy, Web Service.