Holacracy Community of Practice Archive, 2015-2019 Community Holacracy Web Site

I did not have direct experience with the APP used in GE.  But the student I mentioned had a positive experience.

Holacracy is a great system.  Because Holacracy is an adaptive system and role structure is evolving,  GE's real-time feedback probably works better than traditional performance evaluation approaches.  

https://hbr.org/2015/08/ges-re...formance-development 

PD@GE is an APP designed by GE.  You could check the following to know the user interface. 

https://www.behance.net/galler...rsonal-HR-Review-App

There are other similar performance management systems like Impraise. 

http://www.impraise.com/