CICS For the cobol programmer

the critical CICS concepts that let you understand how CICS works so you can program more easily and logically

how to use basic mapping support (BMS) macros to define screens in a CICS program pseudo-conversational programming ... what it is, why you have to use it, and how it affects the logic in a COBOL program,

o a subset of CICS that works for every CICS version through 3.3, including VSE and OS/2 versions

o how to use VS COBOL II features that simplify CICS programming

o how to design a CICS program so it's easy to code, test, debug, and maintain (this book teaches event-driven design, a technique that takes advantage of pseudo-conversational programming)

o why program efficiency is vital under CICS ... and how to write programs that make the best use of your computer's resources

- how to use IBM-supplied transactions like CEMT, CECI, and CEDF to simplify testing and debugging

- how to interpret a transaction dump for a VS COBOL II program

So if you want to learn CICS...or if you already have some CICS experience but you don't really understand how CICS works ... this book is for YOU.

Contents

Preface

Section 1 Preliminary concepts

• Chapter 1 An introduction to on-line systems
• Chapter 2 An introduction to terminal networks for CICS
• Chapter 3 An introduction to, CICS: Concepts and terms

• Section 2 CICS command-level programming
• Chapter 4 The eight steps of CICS program development
• Chapter 5 How to create a BMS mapset

• Topic 1 Characteristics of the 3270 display screen
• Topic 2 How to, code BMS macro instructions

• Topic 1 Pseudo-conversational programming
• Topic 2 A command-level CICS program: An overview
• Topic 3 CICS commands of the basic subset

• Chapter 7 How to, design a structured CICS program
• Chapter 8 Expariding the basic subset of command-level CICS

• Topic 1 File control commands
• Topic 2 Program control commands
• Topic 3 Terminal handling techniques
• Topic 4 Error processing techniques
• Topic 5 How to, access data using the Linkage Section

Section 3 A semple CICS application

• Chapter 9 An overview of the sample application
• Chapter 10 Three model programs

• Topic 1 The master menu program
• Topic 2 The customer maintenance program
• Topic 3 The order entry program

Section 4 Testing and debugging

• Chapter 11 Testing a CICS program
• Chapter 12 Debugging a CICS abend

• Appendix A CICS command summary
• Appendix B BMS macro summary
• Appendix 0 CICS program development procedures for MVS and VSE
• Appendix D OS/VS COBOL programs