Distributed context assessment: A case study with robots in intelligent environments

In this paper, a formalism to encode patterns of events which occurrences must be monitored by a context-aware system is introduced. The Situation Definition Language is a tool used to specify relationships among sensory data in a distributed system, without posing any assumption on how data are acquired. The language capabilities are discussed with respect to an Ubiquitous Robotics scenario, where several robots cooperate with smart environments to perform given tasks.