When looking at typical Nexus scenarios, we observe that they are very different from those we find in traditional desktop computing scenarios. The focus of the user is often on other tasks, e.g. walking around, talking to other people, trying to find something etc. In order to optimally support the user in these situations, the application has to be more proactive, which can be achieved with the support of spatial events.
Nexus, Event, Spatial Event, Event Service, Location, Location Service