U - Definitions

  • U

    ubiquitous sensor network (USN)

    A ubiquitous sensor network (USN) is one that connects all possible sensors in a given network or environment which, theoretically, could be global.

  • unique identifier (UID)

    A unique identifier (UID) is a numeric or alphanumeric string that is associated with a single entity within a given system.

  • universal authentication

    Universal authentication is a network identity-verification method that allows users to move from site to site securely without having to enter identifying information multiple times.

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