Abstract: Medical and health information is one of the core productivity and the nervous system of medical industry. To improve the medical quality, strengthen the information construction, implement system connectivity and solve the information island such as redundancy, polymorphism, no-primary-and-secondary, unrelated, mismatches, disorders, etc., the EMPI (Enterprise Master Patient Index) is put forward by the Nanjing Drum Hospital, in order to maintain the global patient information, ensure patient information consistency and completeness, and implement system connectivity.


Key words: medical information, information island, EMPI