Language and Middleware Support for Dynamism in Wireless Sensor and Actuator Network Applications

Nowadays, advances in wireless sensing and actuation tech-nology allow for reasonable amounts of application logic to be embedded inside wireless sensor networks. Such appli-cations are more autonomous, but also significantly more complex to program and manage. First, in-network adapta-tions need to be supported due to the long-lived nature of the network. Second, the intrinsic dynamism of the network challenges how applications interact with each other. Third, as applications become more complex, coordinating their in-teractions becomes more difficult. This paper explores how the integration of an event-based component middleware, a policy-based management system, and a domain-specific co-ordination language gives rise to comprehensive support for developing and managing this new breed of applications