zBANK

COBOL program to simulate a bank account balance, utilizing a VSAM file as a persistant storage

COBOL application using
CICS, BMS and VSAM

An Enterprise Mainframe Computing Project

Authors:
Benjamin Linnik
Nicklas V.
Henrik G.

For the lecture Enterprise Mainframe Computing a project was developed in collaboration. The project named “ZBANK” is an application written in COBOL and uses CICS as a transaction monitor, BMS as a user interface and a key-sequenced VSAM for data storage. In this document, we summarize the program code and the work done.

Schematic sketch of the functional structure of ZBANK

COBOL Code

CICS.COB_ZBANK3_.cbl

JCL CICS Submit Code

CICS.JCL_PPCOMLNK_.cbl
CICS.JCL_VSAMSET_.cbl
CICS.JCL_ZMAPSET_.cbl
CICS.JCL_COPY2VSM_.cbl

Other files

SEQDAT.ZBANK.cbl

CICS Installation Code

CICS_install.cbl

Different screens realized with BMS, all the communication is done in CICS. Data is stored throughout different sessions in a key-sequenced VSAM file