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Our research is motivated by the scaleability, availability, and extensibility challenges in deploying open systems based, enterprise operational applications. We present Delta's mid-tier Operational Information Systems (OIS) as an approach for leveraging its legacy operational OLTP infrastructure, to participate in the emerging world of electronic(More)
An Operational Information System (OIS) supports a real-time view of an organization’s information critical to its logistical business operations. A central component of an OIS is an engine that integrates data events captured from distributed, remote sources in order to derive meaningful real-time views of current operations. This Event Derivation Engine(More)
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