iREX vs. T. Rex:Immunization Record Exchange
David John MarottaDT7 Softwarewww.dt7.com/cdc
iREX Project Description CDC Project to encourage HL7
Immunization transport between state registries
Toolkit to facilitate HL7 Immunization encoding, transport, receipt, acknowledgement, and parsing.
iREX Toolkit
Immunization Registry Exchange Message Trigger Message Encoding Message Transport Message Receipt Message Acknowledgement Message Parsing Message Handling
Message Trigger Business case for implementing
immunization message exchange Funding and management support for
project implementation Business rules to send a VXU V04 -
Unsolicited Vaccination Record Update Business rules to send a VXQ V01- Query
for Vaccination Record
Message Encoding Visual Message Definition (VMD) takes
HL7-friendly file and handles the message encoding.
Message Transport Secure HTTP (HTTPS) Privacy Authentication Simplicity Real-time
acknowledgement
Dedicated line (DL)
Virtual Private Network (VPN)
Digital Certificates (DC)
This Proprietary SoftwareProduct Mandated By Our
State Legislature (TPSPMBOSL)
Encrypted FTP (eFTP)
Encrypted Email (eEMail)
Message Receipt HTTPS is always available Messages can be stored into any format ODBC table inserts can store messages
directly into a database
Message Acknowledgement Messages are acknowledged in real time Message acknowledgement can include
data specific responses from an interaction with a database
Acknowledgement does not require the sending system to have a message server
Message Parsing The visual message definition is used to
parse the message according to the implementation guide
Messages are parsed into an HL7-friendly record format
Message Handling Business rules when to accept unsolicited
update message Business rules when to respond to query
request Data scrubbing and quality control issues De-duplification of patients De-duplification of care facitilites
iREX Toolset Visual Message Definition Java HTTPS Message Receiver Immunization Message Transmiter Available for free use, source included Email: [email protected] Website: www.dt7.com/cdc