What is situated computing? Since the term has been used in various contexts (e.g. synonym for ubiquitous computing or distributed computing), it makes sense to clarify our understanding of it. We consider situated computing as a super-concept to mobile, ubiquitous and location-based computing. As a research field, it covers any use of computing technology in situ, where the actual context of use has an impact on its outcome or users. Most frequently, one or more users are involved and interact with personal and/or public devices explicitly or implicitly. Of particular importance in situated computing are spatial concepts (such as where the computation/interaction takes place, or what is the spatial configuration of all actively involved entities), and consequently, this aspect is one of the main research areas of the situated computing lab.