HL7 typically involves moving message data between two or more software applications within a clinical setting. Without a standard way of defining the types of data that can be sent, messaging is very difficult. Therefore, HL7 outlines the data model and workflows that are broadly supported.
What is HL7? For the Record magazine published a good article that provides an HL7 tutorial. In addition, on this web site, you can read a 14-page white paper that outlines HL7 standards version 2 and HL7 version 3 — including a background and tutorial on HL7.
Visit our HL7 Resources page for additional information.