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The Query schema of Introduction to Collaborative Application Markup Language (CAML) is used in various ways within the context of Windows SharePoint Services to define queries against list data. You can assign CAML query strings, for example, to the Query property of several classes in the object model in order to return data, or to method parameters of the Lists Web Service to work remotely with data. CAML queries are also used in the context of CAML views to return specific data.