The vision of Ubiquitous Computing requires an infrastructure that is not available yet. Research focussed on Ubicomp applications often is evaluated using proprietary infrastructures. The development of real world Ubicomp infrastructures often fails, because the proposed technologies pay no attention to the integration of existing heterogeneous infrastructures. The architecture described in this paper focuses on the integration of arbitrary communication protocols, the functional extension of existing resources, and the technology independent application support using a Ubicomp API. Communication protocols can be integrated using Network Adaptation Modules. Through the use of Device Agents even devices not connected to a network can be integrated or the functions of connected resources can be extended. The hierarchical management of devices and locations allow a scalable use of the architecture.
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