The last phase of the Friendly Rest Room (FRR)-project was explicitly dedicated to the validation of the conceptual and technical solutions developed within the preceding years. Validation in this context means to assess whether the project has reached its objectives. As FRR is a project within the Quality of Life Programme, the main objective was to contribute to an enhancement of the quality of life of old people (and people with disabilities). In order to be able to investigate whether the quality of life of the target group could be improved by the toilet system developed within the FRR-project, a prototype must be set up in an adequate context, i.e., in an area where, in contrast to a laboratory situation, a ‘normal’ use is possible. This chapter describes the concept and the setting up of a real life installation of an improved toilet system which was carried out at a day care centre in Vienna, Austria. Furthermore, first results from this validation phase (29 primary users and 12 secondary users carried out 316 toilet sessions over a period of two months) are reported. It could be shown that the new toilet system increases safety and autonomy from point of view of primary and secondary users and that the toilet was more than well accepted in the day to day practice of the day care centre.