A high-performing and reliable solution with mixed language support

What is our primary use case?

It's only THE most successful software product of all time, on any platform.

Worldwide, CICS processes approximately 1.6 million transactions per second, twenty-four hours a day, seven days a week.  You can bet that every banking, financial, investment, and insurance transaction that runs anywhere in the world is going to touch CICS at some point in its path.

How has it helped my organization?

There simply is no other platform that is capable of matching it in terms of processing capacity, flexibility, and reliability/availability.

What is most valuable?

The most valuable features of this solution are speed, resiliency, evolution, and mixed language support.

What needs improvement?

I'd like for the CPSM component to be more flexible in terms of maintenance deployment.  Some of the constraints it imposes on rolling out preventive service can complicate the process in a large systems complex (sysplex) consisting of many logical partitions (LPARs).

For how long have I used the solution?

I have been using this solution for more than forty years.

What do I think about the stability of the solution?

It runs on mainframes.  Nothing else need be said.

What do I think about the scalability of the solution?

Considering that it runs on both the 'smallest' DOS/VSE system to the largest zOS Parallel Sysplex configurations in the world (I know of one customer who manages over 20,000 distinct CICS instances), I'd have to say that its scalability is unmatched on any platform.

How are customer service and technical support?

In my experience, the support structure and personnel beginning with level 1 all the way up to and including the architectural and development team at IBM are the best and most capable of any that exist on the planet.

Which solution did I use previously and why did I switch?

Considering that in 1969 when CICS was first deployed, there *was* no other solution, no.

How was the initial setup?

Standard SMP/e installation process.

What about the implementation team?

In house

Which other solutions did I evaluate?

See above

Which deployment model are you using for this solution?

**Disclosure: I am a real user, and this review is based on my own experience and opinions.
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