# Definitions of Configuration Metadata

Definitions of configuration metadata are stored in a file that is read by Substation ES. These definitions determine how Substation ES Transformer processes and transforms message data.

Definitions that are configured for the Transformer can be organized into the following categories:

- System
- Inbound or outbound message data
- Metadata

For information about relationships between definitions of configuration metadata, see Metadata Relationship.

## System

The following are system definitions:

- Back-end system (BES): defines the interfaces to mainframe systems where transaction processing applications are located.
- Network: defines ESB endpoints, ports, daemons, or TIBCO Enterprise Message Service servers and IP networks.
- Enterprise Service Bus (ESB) Interface: translates data types between TIBCO applications and the CICS or IMS transaction processing applications.

## Inbound or Outbound Message Data

The following are inbound or outbound message data definitions:

- Message: defines inbound Rendezvous or TIBCO Enterprise Message Service messages and their data fields, name and value pairs.
- Buffer: defines outbound transaction processing application buffers and their data fields, name and value pairs.

## Metadata

The following are metadata definitions:

- Conversion rule: defines the conversion between inbound and outbound messages, for example, the mapping between message fields and buffer fields.
- Recipe or trigger: defines the decisions for routing inbound and outbound messages to or from specific mainframe processes. A recipe defines both inbound and outbound message routing; a trigger defines outbound message routing only.
- Group: defines groupings of recipes and triggers that achieve customized routing goals.

Copyright © TIBCO Software Inc. All rights reserved.