An Open, Distributable, Three-tier Client-Server Architecture with Transaction Semantics

This paper describes a distributable, three-tier client-server architecture for heterogeneous, multivendor environments based on the integration of Digital's ObjectBroker and ACMSxp transaction processing monitor products. ObjectBroker integration software provides the flexibility to decouple the tight association between desktop devices and specific legacy systems. The ACMSxp transaction processing monitor provides the transaction semantics, system management, scalabilty, and high availability that mission-critical production systems require. Combining these technologies and products in a three-tier architecture provides a strategic direction for the development of new applications and allows for optimal integration of legacy systems. The architecture complies with industry standards, which facilitates vendor independence and ensures the longevity of the solution.