Message - A communication sent from a person or program to another person or program. [IBM]. HL7 V2 messages are designed to ease the exchange of clinical data between different systems. HL7 V3 focuses on healthcare data rather than how to transmit the data. HL7 V3 message development process is based on information models. An information model represents data in an object-oriented way. It has classes with relationships, properties, states, and constraints. The information models are refined and localized to come up with messages that can be exchanged with different systems.
Tony Julian 20:45, 20 April 2011 (UTC)