Pathway/iTS TCP and Terminal Programming Guide

Designing Your Application
Compaq NonStop™ Pathway/iTS TCP and Terminal Programming Guide—426751-001
2-5
Identifying Transaction Components
Figure 2-2. Relationships Between Transaction Functions
Display totals at terminal and get confirmation; update item quantity and customer balance;
add totals to database; inform related applications about order.
022CDT .CDD
Items
Order-ID
Customer
Customer Information
Order-ID
Quantity
Available
Customer Balance
Item Detail
Accept
Items
Assemble
Header
Customer-ID
Order Totals
Quantity Ordered
Order Cost
Order
Complete
Order
Shipping Request Ship-ID
Display Totals
"Done"
Order Header
1
2
3
4
Invoice Request Invoice-ID
Assemble information for order header; display at terminal and add to database;
optionally change customer information.
Accept items in order, check item availability and customer credit; display item details
at terminal and add to database.
Later, when order is shipped and customer billed, add shipping and invoice numbers to
database.
1
2
3
4
Legend
A/R
Customer
Credit
Item Qualtity Available
I/C
Item-ID, Quantity
Display Item Details
Confirm Order
Customer-Details