webMethods Inc., provider of XML-based business-to-business e-commerce and integration solutions, announced that it will support Commerce XML (cXML), an open XML-based standard created to facilitate e-commerce within trading communities.webMethods is among 40 companies that have joined Ariba Technologies in the development of cXML, a suite of lightweight XML DTDs and their associated processes that define the exchange of catalog content and transaction information between buyers and suppliers. www.webmethods.com