Conquer : an Architecture for a Distributed Push-enabled Data Management System

Conquer is an extensible architecture designed for transforming a pull-based data management system (e.g., conventional DBMSs, web search engines and query systems) into a push-enabled data management systems. The key ideas of Conquer are the concept of continual queries; the mechanisms for eecient and scalable implementation of continual queries 20], including synchronous or asynchronous event monitoring, immediate or deferred execution coupling; and the three-tier architecture that provides data independence in both mediator level and wrapper level. The distinct features of the Conquer architecture include: reusing and extending conventional DBMS components, providing push-enabled services by incorporating distributed event-driven triggers, and combining pull and push services in a uniied framework. This paper presents the design of Conquer and its initial implementation on top of the distributed interoperable information mediation system DIOM 17, 15].