Example From MENU Procedure

Designing the Procedure Dialog › Define Exit States › Example From MENU Procedure

Example From MENU Procedure

The following illustration, Annotated Dialog Flow Diagram, shows a Dialog Flow Diagram with exit state values for each dialog flow from the MENU procedure.

Annotated Dialog Flow Diagram

The following sample code, Procedure Action Diagram for MENU Procedure, shows the Procedure Action Diagram for the MENU procedure.

CASE OF COMMAND

     CASE 1
     EXIT STATE IS take_order_requested
     CASE 2
     EXIT STATE IS cancel_order_requested
     CASE 3
     EXIT STATE IS maintain_customer_requested
OTHERWISE
EXIT STATE IS invalid_requested

The exit state value and exit state message for each exit state definition are required by the MENU procedure.

The exit state definitions used in the MENU Procedure are shown in the following table.

Exit State Value	Exit State Message	Exit State Termination Action
TAKE ORDER REQUESTED		Normal
CANCEL ORDER REQUESTED		Normal
MAINTAIN CUSTOMER REQUESTED		Normal
INVALID REQUEST	You have made an invalid request. Please make another selection	Normal

The following list shows the possible values of Exit State at the conclusion of the execution of the MENU procedure:

Take Order Requested—The Take Order procedure will be initiated. (Actually, its first procedure step, Add Header, will be initiated.)
Cancel Order Requested—The Cancel Order procedure will be initiated.
Maintain Customer Requested—The Maintain Customer procedure will be initiated.
Invalid Request—The following message is displayed:
```
You have made an invalid request. Please make another selection.
```
An online procedure will redisplay the menu display along with the error message.

A batch procedure will halt.

More information:

Designing the Procedure Logic