**Affects:** SAREF **Situation:** A LightSwitch is classified as an actuator. It does not measure light. But SAREF contains the following axiom: ``` Axiom subClassOf( LightSwitch SomeValuesFrom( measuresProperty Light) ) ``` **Proposal:* Replace with controlsProperty. **Status:** agreed during SmartM2M-2nd RG Meeting about 2 NWIs SAREFv3 and SAREF Com Framework V2 2019-05-06