http://www.cs.indiana.edu/dde/projects/dquob.html%|%dQUOB%|% (Dynamic QUery OBjects) targets run-time analysis of complex, interactive scientific applications for purposes of
attaining scalability improvements with respect to the
amount and complexity of the data transmitted, trans-
formed, and shared among different application com-
ponents. Such improvements are derived from us-
ing database techniques to manipulate data streams.
Namely, by imposing a relational model on the data
streams, constraints on the stream may be expressed as
database queries evaluated against the data events com-
prising the stream.

dQUOB (1) offers the means for dynamic
creation of queries and for their application to large
data streams, (2) permits implementation and runtime
use of multiple ‘query optimization’ techniques, and (3)
supports dynamic reoptimization of queries based on
streams’ dynamic behavior.

Inter-node communtications and coordination of query I/O within nodes is done via embedded Tcl interpreters.

[http://www.cc.gatech.edu/systems/projects/dQUOB/q3.jpg]

[http://www.cc.gatech.edu/systems/projects/dQUOB/q5.jpg]

<<categories>>Enter Category Here