Standard. Xquery. Parser Library. CAM: A Swiss Army knife for XML structures. Web services' bread and butter consists primarily of exchanging XML structures between applications in order to fulfill interoperability requirements.
Prior to such exchanges taking place, most XML data undergoes a series of steps that include validation and transformation, many of which are solved using staple XML approaches like Schemas, DTD's, XPath and XSL. Up next we will explore yet another technique developed by OASIS which nicely complements many of the aforementioned procedures, its name: CAM (Content Assembly Mechanism) .