Before beginning this tutorial, it is important to read the previous chapters of this manual so that you will have a better understanding of how Chameleon and Iguana relate to one another.

In this tutorial, you will set up an Iguana channel that:

• Extracts data from tables in a database, and
• Sends HL7 messages based on this data over the network.

The objective of this tutorial is to retrieve patient demographics from the database and output these demographics as HL7 messages. These HL7 messages will then be sent across the LLP over a TCP/IP connection to a target host.

You will be creating a channel that has a From Database component as its source and an LLP Client component as its destination.

	Although this section gives a complete example of how to use Chameleon to set up a VMD file, it does not demonstrate the complete capability of Chameleon to deal with generating HL7 messages. For a more complete picture of Chameleon's capabilities, see the Chameleon section of this manual.

	You can view a video that shows how to perform these tasks. To view this video, follow this link: Generating HL7 Messages From a Database.