The first step in creating the VMD file is to load a sample message into Chameleon's Message Browser to create the first message definition.

• Start Chameleon. Close the News Feed dialog box if it appears.
• In the toolbar, click Browse.
• In the top panel of the Message Browser window, copy or type the following message:

MSH|^~\&|APP1|FAC1|APP1|FACILITY1|20070111102716||ORU^R01|070111110412558|P|2.5|||||||||
PID|1||1111||BABYLASTNAME^BABE||||||||||||||||||||||||||
NK1|1|NEOMOTHER||||||||||||||4/4/1975 12:00:00 AM||||||||||||||||||||||
ORC|RE||||||||||||||||||||||||
OBR|1|1111|1111||||||||||||||||||||||||^^^|||||||||||||||||||
OBX|1|ST|PKU^Phenylalanine||normal|||||||||||||
OBX|2|ST|TSH-I-E^TSH Initial Elevated||high||||||||||||| 

• Click Parse.
• Click the Segments with red icons are unrecognized link.
• In the Import Unrecognized Segments window, from the list box next to Import segments from a library, select HL7 2.5.
• Click Next, Next and Finish.
• Click the Message is unrecognized link.
• In the Create Message Definition Wizard window, click Finish.

Notice that the message definition has an identity of ORU^R01, which means that it will attempt to match all incoming ORU^R01 messages. This will be fixed later in this tutorial.