Concept

Unisys OS 2200 distributed processing

Summary
OS 2200 supports all commonly used, and many not so commonly used, distributed processing protocols, APIs, and development technology. The X/Open Distributed Transaction Processing model and standards are the basis for much of the OS 2200 capability. Full support for the X/Open XA APIs including two-phase commit are built into transaction middleware, the database managers, and even clustering. The J2EE model is also fully supported. It uses the XA capabilities of the system but provides the J2EE APIs and protocols. IBM WebSphere MQ (AKA MQSeries), MSMQ, and others are all fully integrated into the system taking advantage of the XA and integrated recovery facilities. Distributed Transactions Distributed Data Access Access to OS 2200 data can be made from virtually any platform and technology. Similarly, OS 2200 applications can access data on almost any other platform. Composite Applications It is rare to find an application that is wr
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