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<p>Various architectural components of ORION-1 and ORION-1SX are described and a review of the current implementation is provided. The message handler receives all messages sent to the ORION system. The object subsystem provides high-level data management functions, including query optimization, schema management, long data management (including text search) and support for versionable objects, composite objects, and multimedia objects. The transaction management subsystem coordinates concurrent object accesses and provides recovery capabilities. The storage subsystem manages persistent storage of objects and controls the flow of objects between the secondary storage device and main memory buffers. In ORION-1, all subsystems reside in one computer. The ORION-1SX architecture is significantly different from ORION-1 in the management of shared data structures and distribution of these subsystems and their components.</p>
ORION next-generation database system; ORION-1; ORION-1SX; message handler; ORION system; object subsystem; high-level data management functions; query optimization; schema management; long data management; text search; versionable objects; composite objects; multimedia objects; transaction management subsystem; concurrent object accesses; recovery capabilities; storage subsystem; persistent storage; secondary storage device; main memory buffers; shared data structures; database management systems; information retrieval; transaction processing
J.F. Garza, N. Ballou, W. Kim, D. Woelk, "Architecture of the ORION Next-Generation Database System", IEEE Transactions on Knowledge & Data Engineering, vol. 2, no. , pp. 109-124, March 1990, doi:10.1109/69.50909
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