The DEUS project aims to develop an easy to deploy and use versatile wireless network infrastructure for dynamic environments. It identifies four network domains: a wireless backbone, wireless sensor networks, access points, and backend servers. The backbone mesh provides a secure, self-organizing transport network between components. Wireless sensor networks share features with the mesh but support multiple routing protocols. Global routing optimizes paths between sensors and connects different network domains in a transparent way. Access points deployed on the mesh provide seamless client mobility. The architectural concept forms the basis for DEUS proof of concept implementations across different use cases.