The example application uses two VSAM files: the catalog file which
contains the details of all items stocked and their stock levels, and the
configuration file which holds user-selected options for the
application.
Catalog file
The catalog file is a KSDS VSAM file which contains all information
relating to the product inventory.
Configuration file
The configuration file is a KSDS VSAM file which contains information
used to configure the example application.