78Developing Web Services Using CICS, WMQ, and WMB
5.1.3 Overview of the application
Figure 5-4 Application design of CICSWSAP
5.1.4 Database schema
The following tables are defined on our DB2 for z/OS system:
ADDRESS (
ADDRESSHASH INTEGER PRIMARY KEY NOT NULL,
ADDRESSLINE1 CHAR(100) NOT NULL,
ADDRESSLINE2 CHAR(100),
Mainframe operator enters
Customer change of address request
CICS Web Service
extracts data from DB2
and sends to client
Txn makes updates to
DB2 and puts item on
MQ queue
DB2
MQ
WMB
Broker takes item from
MQ and publishes to all
interested parties
POSTAL
SERVICE
MAINFRAME
System z
MQ ClientMQ ClientMQ Client
Corp 2
MQ Client
Corp 3
Corp n
Corp 1. ...
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