Since the catalogs formalize the analysis of online websites and user experience, they provide consistent advice. At the technical level, we propose a design tool that has a class framework to guide the design process and to facilitate efficient code generation. Our analysis of the tool’s use highlights its efficiency for rapid website development and its use of the “website family” concept. The results are very encouraging for both method and tool; both facilitate website design by reusing existing solutions and components. However, our analysis also underlines a few limitations in terms of usability and support, and thus we need to improve both the method and the tool in order to more rigorously quantify the advantages that they provide using a metric that has to be defined.