1. Application example: orders

Throughout this document, we'll use a single example to illustrate our point. This example presents a fairly trivial case of communication between two systems in the B2B "Business-To-Business" context, for example. The first system, which we'll call the "customer" (there can of course be several customers), regularly sends its various orders in XML format to the second system, which we'll call the "supplier" and which will process these orders (figure 1 ).

In this context, the supplier's objective is to set up a mechanism for archiving and analyzing (in the form, for example, of a data warehouse