Hello, I found in the ebxml-core archive by the mail Re: Jon Bosak's suggestion that xCBL be adopted astheeb XML Business Document framework (written by John McClure) from March, 31th this year some very interesting documents from the Document Consortium Namespace . You'll find this documents in the attached zip-file. This documents describes the definition of XML elements and attributes for expressing information relevant to business processes concernced with commerical real estate properties by using by using predefined conventions and insertion of namespaces. It might be helpful for us. Regards, Gunther <<dcn.zip>> dcn.zip