17. The system of claim 1 , wherein said relation is a template having at least one attribute defining said role, wherein said template is defined by a relational database having at least one table having at least one column therein, and wherein said attribute is defined by said column.
17. The system of claim 1 , wherein said relation is a template having at least one attribute defining said role, wherein said template is defined by a relational database having at least one table having at least one column therein, and wherein said attribute is defined by said column. 18. The system of claim 17 , wherein said template defines an XML tag having at least one parameter, and wherein said attribute defines said parameter of said XML tag.