It is of the utmost importance, we argue, to specifically tailor disaster response systems with users' collaboration in mind. Such an approach, building on top of, and extending the classic single- and multi-user Human-Computer Interaction paradigm is described in this paper. In what follows, we outline our evacuation support system for walking wounded. The proposed system follows a user-centered design method, coupled with navigationally relevant aspects of human cognition and exemplifies our collaboration-oriented design. Keywords collaboration, coordination, navigation, user-centered design, disaster response, evacuation, prototyping ACM Classification Keywords H.5.2 [Information interfaces and presentation]: User
Lucy T. Gunawan