Throughout the years, RRD has build up an end user panel. This end user panels consists mainly on healthy elderly persons. RRD often asks (a part of) this panel to participate in scientific research that is focused on the collection of user requirements and user needs. This panel also is well capable of outlining the context of use. Because of this panel, we can act fast when an innovation projects asks for input or when an external partner wants to tests is concept in a group of potential end users.