July 2000
Intermediate to advanced
414 pages
9h 41m
English
book
Designing and Programming CICS Applications
by John Horswill, Members of the CICS Development Team at IBM Hursley
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Chapter 3. Introducing the Sample Application
In this chapter:
Chapters Chapter 1 and Chapter 2 described the essentials of a business application, and the advantages of using CICS in business applications. The remainder of this book is concerned with the design and the programming needed to build a CICS application along the lines of those described in the previous chapters. Before getting into the details, let’s look at the business case and the reason why our fictitious company, KanDoIT, might want to develop a CICS application.
The Business Case
The KanDoIT company is a successful business with an IT department that includes a CICS development team and a web design group. It has thousands of customers. The customer accounts file holds the customer’s name, address, telephone number, charge limit, current balance, account activity, payment history, and so on. It uses a short, unique account number that is allocated manually (this wouldn’t happen in the real world but it’s included here for simplicity) when a new account is opened.
The existing application creates, reads, updates, and deletes customer accounts, and it needs to be expanded to meet the expected future demand. It runs on an IBM S/390 mainframe computer that is also used for other, unrelated applications. The application was developed many years ago, and is used by staff in the accounts department and in the customer services department. The staff run, the ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.