Ensemble HL7 Version 2 Development Guide - InterSystems ...

Elements of a Routing Production
Note:
To navigate to the configuration diagram from the [Ensemble] > [Productions] > [Production
Model] page, where the previous topic ended, click Configure Production, then continue.
You may configure an HL7 business service by entering values in the following fields. When you are
done editing, click Apply to save your changes, or Cancel to ignore them.
• General Settings — This column of settings appears at left. These are settings that configure the
HL7 business service as a production item. The most important of these for HL7 are as follows.
For descriptions of the other General Settings, see the section “Business Service Settings” in
“The Configuration Page” chapter of Managing Ensemble Productions.
- PoolSize — The default PoolSize value of 1 ensure FIFO (First In, First Out) processing. In
many cases, multiple patient demographic updates must be received in order. For example,
many applications require receipt of an ADT Registration message before they can process
an Order message, an Order message must be received before a Result message, and so on.
- Category — This text label permits configuration items to be sorted in the configuration diagram.
For example, you can assign the same Category name to all items in the same interface.
You may enter multiple category names separated by commas. Space characters count (do
not use them around the commas).
• Specific Settings — This column of settings appears at right. The column is organized into settings
that configure the HL7 business service (at top) and settings that configure its associated adapter
(at bottom). The specific settings will be different depending on which HL7 business service you
are configuring, and which adapter that business service is using. The following list describes
how to configure the most important of these settings. For details about which class provides
which settings, see the “HL7 Business Service Classes” section in the chapter “Settings for a
Routing Production.”
The Specific Settings for an HL7 business service are as follows:
AckMode
Helps to establish the format and conventions for issuing HL7 acknowledgement messages
in response to HL7 messages received. For a list of codes to enter in this field, see the “HL7
Acknowledgement (ACK) Mode” section in the chapter “Settings for a Routing Production.”
Ack Target Config Names
(File and FTP only) Unlike TCP business services, File and FTP business services have no
persistent connection on which to send HL7 acknowledgement messages (ACK or NACK).
For this reason, the default AckMode for File and FTP business services is Never, which is
usually appropriate. However, when you do want to send ACKs from a File or FTP business
service, use the Ack Target Config Names setting to identify an Ensemble routing process or
business operation that will receive the ACK messages. For AckMode details, see the “HL7
Acknowledgement (ACK) Mode” section in the chapter “Settings for a Routing Production.”
26 Ensemble HL7 Version 2 Development Guide