Active and Passive EMPI

Passive (or “back-end”) Integration: This mode is typically used to pass client data
“updates” from the various stakeholder systems to the EMPI. Where feasible, data should be exchanged using a transaction message-based approach (store and forward) with HL7 as the application protocol. The integration would use an interface engine (i.e., message broker), delivering messages either in real time or batch. The proposed solution must account for possibly taking the data from a stakeholder application and formatting it into HL7 messages.

Active (or “front-end) Integration: This mode is typically used when integrating the EMPI search components with the existing stakeholder ADT systems. There are basically two implementation options available. The 1st available option (non-invasive) involves integrating the EMPI and stakeholder system presentation services through the use of a scripting or screen scraping technology. The 2nd available option (invasive) involves modifying the stakeholder system to access the EMPI through HL7 query response messaging or published API’s.