Other, smaller enterprises can also run CICS TS and other CICS family products. While CICS TS has its highest profile among large financial institutions, such as banks and insurance companies, many Fortune 500 companies and government entities are reported to run CICS. CICS manages the entire transaction such that if for any reason a part of the transaction fails all recoverable changes can be backed out. These services can be more efficient than the generalized operating system services and also simpler for programmers to use, particularly with respect to communication with diverse terminal devices.Īpplications developed for CICS may be written in a variety of programming languages and use CICS-supplied language extensions to interact with resources such as files, database connections, terminals, or to invoke functions such as web services. This processing is usually interactive (screen-oriented), but background transactions are possible.ĬICS Transaction Server (CICS TS) sits at the head of the CICS family and provides services that extend or replace the functions of the operating system. A CICS transaction is a unit of processing initiated by a single request that may affect one or more objects. IBM CICS (Customer Information Control System) is a family of mixed-language application servers that provide online transaction management and connectivity for applications on IBM mainframe systems under z/OS and z/VSE.ĬICS family products are designed as middleware and support rapid, high-volume online transaction processing.
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