: This is an ongoing project, which is scheduled until 2005. So I decided together with Richard Wang to set up Sup-Projects that could be published earlier. The main objective is to implement DQ Principles in a software development project and to assure continuously measurement of Data Quality. This paper shows how we used basic Quality Function Deployment Methods to determine the DQ Customers point of view. Based on an actual business process description, we worked out the critical process points. Then we interviewed all Team Members to get a basic idea of how our Information Customers rate Data Quality at all and within the sub-processes looking at the critical points. After we collect all that data we could set up a system that allows us to measure DQ in a Customers focus. This System is the basis for all our further work.