The Online Software is a system of the
ATLAS Trigger-DAQ project. It encompasses the software to configure, control and monitor
the Trigger-DAQ but excludes the processing and transportation of physics data. It is
essentially the "glue" that holds the various sub-systems together. It does not
contain any elements that are detector specific as it is to be used by all possible
configurations of the DAQ and detector instrumentation. It must co-exist and co-operate
with the other sub-systems, in particular, interfaces are required to the data-flow,
triggers, processor farm, event builder, detector read-out create controllers and Detector
Control System (DCS).
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