The Keystone project includes gathering monthly data on infection rates, which are reported to the leaders of intensive care units and to top hospital officials. The results are discussed with the larger staff, with an eye to learning from mistakes. This is an instance of diagnostic metrics. It provides data that can be used by a practitioner (physician), or internally within an institution (hospital), or shared among practitioners and institutions to discover what is working and what is not, and to use that information to improve performance.
