Introduction to Data Management

Developing Applications With PATHMAKER
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To create a service, you fill in the necessary information to define your database
transactions and then use COBOL statements to implement the balance of the business
function. Under your guidance, PATHMAKER packages the services into one or
more servers, along with the communication statements that permit the server to
interact with the requester, as shown in Figure 5-2.
Figure 5-2. Services in a Server
S8020-017
Open the required files
Read the requester's
service request message
Act on the service request
Reply to the requester
Close the files
Server
Service 1
Service 2
Service ...
Service
n
Database
Requester