Summary

The purpose of Recommendation ITU-T F.744 is to describe ubiquitous sensor network (USN) services and requirements for USN middleware. To provide various USN services easily and effectively, it is desirable to define an intermediate entity such as USN middleware for providing functions commonly required by various USN services. This Recommendation covers USN service description, USN middleware description, use cases of USN services using USN middleware, the functional model for USN middleware and requirements for USN middleware.