Application Debugging Workshop

Mainframe Training Overview

The most technical CICS application course, the participants will acquire the ability to locate the source of an abend, examine the operands involved and determine corrective action. They will also be exposed to some of the debugging tools available with the CICS product. The dumps used during the exercises have all been created by programs written with COBOL/MVS.

Mainframe Training Audience

CICS applications developers and designers, technical support specialists

Mainframe Training Prerequisites

CICS Application Programming and Advanced Application Programming Workshop courses, or equivalent experience

Mainframe Training Course duration

3 days

Mainframe Training Course outline


Application Programming Interface

CICS command-level translator; Compile JCL with and without translation; Addressability issues; COBOL compiler option and a review of the material produced by the compilation process.

Error Handling

HANDLE CONDITION; IGNORE CONDITION; NOHANDLE; RESP. This chapter also discusses the repercussion of not performing proper condition handling in a CICS program.


Review of the runtime environment used in CICS concentrating on tools that are available to help the CICS programmer test his program; the following tools will be covered: CECI, CEBR, CECS, CMSG, CMAC, a brief overview of Resource Definition Online, CEMT and CEDF.

Task Execution

CICS areas; Task Control Area; Storage allocation; Exec Interface Block; Abnormal end processing.

Dumps and Traces

Dump facility; Messages and codes; Dump structure and format; CICS trace facility; A lot of examples are provided to provide the participant with a good understanding of the information presented in these reports.

Abend Analysis

Locate data in dumps; Locate failing instructions; abnormal task termination; storage violations; wait problems. This chapter discusses various types of abend and the approach to take while investigating these problems. The participant will work with the following problem situations: ASRA(various types), ASRD, AEYD, AEZD, AICA(loops), Aexx, storage violations and waits.

Wintrac Inc.
16523 SW McGwire Ct.
Beaverton OR 97007
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