If you are developing message flows
that access external resources such as databases, Enterprise Information
Systems, IMS™, CICS® Transaction Server for z/OS®, or email servers, you
must set up your broker environment to support these applications.
Configuring databases
Configure databases to hold application
or business data that you can access from your message flows.
Configuring global coordination of transactions (two-phase commit)
Globally coordinate message flow
transactions with a transaction manager to ensure the data integrity
of transactions. On distributed systems, the WebSphere MQ queue manager that is associated
with the broker performs the transaction manager role.