Getting Started with TRANSACT (32247-90007)

Chapter 9 157

Creating Custom Applications

Form Independence

Now let’s see how to implement generic transaction code that can handle multiple form

formats. This will be illustrated by modifying the program above. Keep in mind that we

could have written the program this way to start with. It is not a program modiﬁcation

that we must make every time we want to add another form.

The following program provides generic update customer capability and is form

independent. That is, the program has no idea of which data elements exist on a form, nor

does it know how many possible different forms may be used to update a customer.