Technology evolution is providing new pervasive service scenarios characterised by a huge number of distributed and dynamic devices. Accordingly, a new generation of services and infrastructures are emerging which support situatedness, adaptivity and diversity. In this paper we model the overall world of services, data and devices, as a distributed computational ecosystem. Each entity will be modelled as an autonomous, spatially-situated individual of the ecosystem, whose existence is reified by an LSA (Live Semantic Annotation). Ecosystem's behaviour is controlled by coordination rules called eco-laws, which are sort of chemical-like reactions evolving the population of LSAs. We describe an architecture supporting this vision, a formal model of eco-laws, and finally show their usefulness in a scenario of crowd steering through pervasive displays.
Coordinating spatially-situated pervasive service ecosystems / Viroli, M.; Nardini, E.; Castelli, G.; Mamei, M.; Zambonelli, F.. - 741:(2011), pp. 19-27. (Intervento presentato al convegno 12th Workshop on Objects and Agents, WOA-2011 tenutosi a Rende, CS, ita nel 2011).