Various approache,y can be used to migrate legacy applications to the Web. In particular, migrating data-intensive legacy applications (e.g. traditional application for business management) needs methodological approach to face the challenges implied by the process.

The Ubiquitous Web Applications (UWA) framework is one of the most innovative and complete frameworks for conceptual user centered modelling of a Web application. In this paper we describe the application of UWA to a real experience of reengineering a real legacy applicationfor customer's order management.