Customer satisfaction. For example, based on customer satisfaction surveys e.g. customer feedback.
The Information Technology Infrastructure Library (ITIL) is a framework of best practice approaches intended to facilitate the delivery of high quality information technology (IT) services.
Popularity ranking of KPIs is expressed by little green horizontal bars. The more green the bar is, the more populair the KPI is. Popularity of a KPI is calculated based on usage by the community.
People with an Enterprise plan see even more details about the popularity of KPIs:
