Unisys OS 2200 distributed processing

[1] Full support for the X/Open XA APIs including two-phase commit are built into transaction middleware, the database managers, and even clustering.

The languages and middleware continue to evolve and applications adopt new technologies when they best fit the business requirements.

That is often dictated by the need to integrate with applications written by partners, clients, suppliers, and third-party software providers.

A composite application may be created by combining existing transaction logic with different middleware or a front-end written for a specific purpose.

Two-phase commit processing is supported within the database managers including clustered environments.