Chimera is a system used to find or create a workflow for a series of [OGSA] [Grid service]s to provide a scientists requested data product. Chimera was begun in 1999 and is enabled by the [Pegasus] Planner described in \[deelman02b\], a [GriPhyN] project at UC ISI. The Chimera is middleware designed to be invisible from a client who requests the data product. The workflow is represented as an abstract program execution graph (DAX - DAG in XML). This graph is transformed into an executable [DAG] for the Condor [DAGman] scheduler by the [Pegasus] planner. 1 Resources - {link:The Chimera Virtual Data System|http://www.griphyn.org/chimera/} - {link:Chimera Release 1.2.10|http://www.griphyn.org/chimera/release.html} 1 Related - [Pegasus] 2004-10-25 13:02:37.607 2004-09-13 10:29:38.362