Virtual Database EMR

Virtual Database EMR

The Virtual Database EMR is a model of electronic medical record (EMR) management where clinical data resides on the ancillary system that created the data, not a centralized Clinical Data Repository. A unified view of a single patient is obtained by querying ancillary systems; that is, calling "services" running on a centralized, state-less server.

Ancillary systems take a performance hit with this approach. For every medical record entry into the system some ancillary systems are queried on a one-for-one basis. For multi-site implementations of a VDB EMR that require gathering results across all sites the problem becomes significant as the number of simultaneous users goes past 10,000. Ancillary systems at all sites must be upgraded to handle 10,000 simultaneous users.


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