Logical groups of commands that devices support to accomplish their tasks. Function can act upon (OP saref:actsUpon and its sub-properties) features, properties, or states. An instance of saref:Function can apply to different devices.

Function

To accomplish the task of sensing the temperature, a temperature sensor should have a sensing function.

To accomplish the task of washing clothes, a washing machine should have a function for washing.

To accomplish the task of controlling the light, a smart light switch may have a function for turning on and off the light, and another to set the luminosity of the light.

V3.2.1: Simplified definition and axiomatization of saref:Function. Added examples.