88 6 DesigningBlended Reality Spaces Fig. 6.7 Ambient display as blend Fig. 6.8 Tangible objects in AGNES These expressions help us understand information and communication in terms of natural sources/physical activities in everyday life, where there is some similarity or correlation between them. Users understand meaning in their bodily interaction with the world, physically, socially, and culturally. To ensure user-driven development of the prototypes, users were repeatedly involved in order to collect qualitative data, impressions and opinions by interview and discussion. Their involvement helped iteratively to develop requirement spec- ifications by engaging in testing and evaluating implemented components and the