This figure is a block diagram. It shows a exchange of information from an Windows Platform to a Mainframe and back again.
This figure consists of two frames:
Windows Platform
Mainframe
Below the Windows Platform, section on the left is a box. Inside the box is:
TP (Transaction Program)
(CICS Service Provider)
This box has an arrow pointing from it to the box on the right labeled Mainframe. In the middle of the arrow are the words "Transaction with data". Below the label Mainframe is a box. Inside the box is:
TP
(CICS Transaction)
This box has an arrow pointing from it to the box on the left labeled Windows Platform. In the middle of the arrow are the words "Reply with data".