wiki:2012/Projects/MobilityFirst/Context

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Starting the page with some material

Context aware grouping is the idea that devices can form static and dynamic groups based upon conditions of the surrounding context. Say, people driving in New Brunswick can form the group "Driving in New Brunswick". This group could then contain the GUIDs (Globally Unique Identifier) of the phones that belong to each individual. The group itself would also have its own GUID such that a traffic alert can be directed towards the group GUID and be relayed to all of the group members. Other examples of dynamic groups include the devices located in an area at a given time, phones that are in their owner's pockets etc.

An example of a static group may contain all sensors worn by a certain user. Referring to the ICEMAN Project, the jacket itself would be registered as a group and would have its own GUID. In addition, each member of the group, the sensors of the jacket, would have their respective GUIDs.

The University of Massachusetts has already set up a GCRS (Global Context Resolution Service) server here. We are currently using their server to handle registering entities and groups and obtaining corresponding GUIDs.

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