In this chapter, which describes Step 1 of the methodology we use the Staff user views to illustrate the building of a conceptual data model, and then in the following chapter, which describes Step 2 we describe how this model is translated into a logical data model. As the Staff user views represent only a subset of all the user views of the DreamHome database it is more correct to refer to the data models as local data models. However, as stated earlier when we described the methodology and the worked examples, for simplic- ity we use the terms conceptual data model and logical data model until the optional Step 2.6, which describes the integration of the local logical data models for the Staff user views and the Branch user views.