CICS Communication Frameworks: Deep Dive into Intercommunications and External Interfaces

Author(s)	Chandra mouli Yalamanchili
Country	United States
Abstract	Customer Information Control System (CICS) is a core OLTP (Online Transaction Processing) server on IBM's z/OS environment. It enables high-volume, high-performance transaction processing that businesses depend on every day. Interactions between CICS regions, other z/OS subsystems, and external or remote applications form the backbone of enterprise-grade mainframe systems. With the growing footprint of distributed applications, there is an increasing need for CICS interactions. These CICS interactions are important because most core business logic and data still live on the mainframe, and surrounding distributed applications depend on CICS to complete their work. CICS provides flexible and reliable communication methods, offering protocols and interfaces that meet modern enterprise environments' changing demands. This paper explores the communication options available with CICS in different contexts: multi-region setups, connections to non-CICS applications on z/OS, and communication with external systems.
Keywords	CICS; z/OS; multi-region operation (MRO); intersystem communication; SNA; IPIC; TCP/IP; EXCI; DSNACICS; DB2 stored procedure; mainframe; remote communication.
Field	Engineering
Published In	Volume 3, Issue 4, July-August 2021
Published On	2021-07-08
DOI	https://doi.org/10.36948/ijfmr.2021.v03i04.41032
Short DOI	https://doi.org/g9dhjk

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International Journal For Multidisciplinary Research