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Attributes are containers of values. They can be used for the following purposes:
(1) Store parameters required to make a protocol specific invocation to the thing, such as ___
<String Name="InterfacePort"/>
Store information received from the thing, such as TempValue from the temperature sensor
Act as control variables - variable that can activate certain actions
hold fixed information about the thing, such as the temperature unit
Action is where the processes to interact with things are defined.
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