Nice find GC. An extract from that link shows we are in their...

Nice find GC.
An extract from that link shows we are in their guidelines as preferred type of Pain Assessment tool:

​

This includes recent advancements in technology that enable more advanced assessment strategies, testing and diagnosis including smart phone applications that allow dementia patients and those with limited communication to better express their pain that harness advanced facial recognition technology.22 It is recommended that funding be allocated to improve the evidence base of what constitutes best practice pain management in residential aged care facilities.