This section describes three of the most common channel scenarios:

(1) The LLP Listener to Database scenario is one of the most common channel setups. This type of channel is useful for accomplishing the following:

• Accepting HL7 messages from a network via the LLP Listener component;
• Extracting data from these messages using a Chameleon VMD file; and
• Inserting the data into a database via the To Database component.

Common 'LLP Listener to Database' Scenario

(2) The Database to LLP Client scenario is another common channel setup. This type of channel is useful for accomplishing the following:

• Extracting data (via the use of the Chameleon VMD file) from tables in a database via the From Database component;
• Sending the generated HL7 messages across the network based on the extracted data via the LLP Client component.

Common 'Database to LLP Client' Scenario

(3) The LLP Listener to Channel to multiple target destinations setup is another very common channel scenario. This multiple channel setup can contain as many channels as you wish that use the From Channel source component. It is useful for accomplishing the following:

• Accepting HL7 messages from a network via the LLP Listener component;
• Filtering inbound HL7 messages and routing them to multiple destinations;
• Performing transformation functions (e.g. transforming one HL7 format to another); and
• Setting up a persistent, transactional queuing system.

The following diagram shows a sample channel setup using Iguana 4.0 or later:

Common Channel Component Scenario