iNTERFACEWARE™ Inc.

Switching Configurations Using the Sorting Engine

Using Chameleon, the aim of this tutorial is to take you through the process of modifying a working application with Multiple Configurations.

The application you will modify must do the following:

• Capture two types of HL7 messages from a network;
• Parse the messages, according to their configuration, and classify them according to their pre-defined message types;
• Extract user-defined data from the messages;
• Process the data; and
• Acknowledge to the sender that the messages were received and processed.

Multiple configurations are very useful in interface design because it reduces the maintenance effort and cost for supporting various flavors of HL7. Essentially this means that as long as the interface in your application is consistent (i.e. tables and table grammars that comprise your VMD), everything else can change (i.e. segment grammar, message identity, table mappings and segment Python scripts, etc.).