Reaching Agreement on Shared Business Documents Before trading partners can do business, they must agree on the structure and content of each XML business document that they plan to exchange over the Internet. To do this, trading partners must create XSDs that define the contents and structure of their associated XML business documents. Trading partners can exchange an XSD file by email, the web, or any other method. This is like two people trading dictionaries before they communicate in different languages. You can use any third-party tools to create and validate XSDs.