“…WSNs may perform a multitude of tasks, and be harnessed by a range of diverse services. Thus more attention needs to be focused on the requirements of those working at the application layer, especially if adaptive distributed, mobile services [8] [9] are to be delivered in practice. As an initial step in this direction, an Interaction Simulator (iSim) is being developed that allows experimentation with various WSN deployment configurations, and enables the exploration of how third-party users might encounter and use services that require remote WSN access.…”