GridDB: A Data-Centric Overlay for Scientific Grids David Liu and Michael J. Franklin   View Paper (PDF)   Return to RESEARCH SESSION 16:SENSORS, GRID, PUB/SUB SYSTEMS Abstract We present GridDB, a data-centric overlay for scientific grid data analysis. In contrast to currently deployed process-centric middleware, GridDB manages data entities rather than processes. GridDB provides a suite of services important to data analysis: a declarative interface, type-checking, interactive query processing, and memorization. We discuss several elements of GridDB:workflow/data model, query language, software architecture and query processing; and a prototype implementation. We validate GridDB by showing its modeling of real-world physics and astronomy analyses, and measurements on our prototype. ©2005 Association for Computing Machinery