Back End Details (2)

Process Manager (PMG)

• Start/stop/control distributed processes
• Documentation somewhat out of date
• Doesnt require use of the database
• But does seem to need whole DAQ infrastructure

Run Control (RC)

• ``Concurrent Hierarchical State Machine'' (CHSM)
• Very good documentation: extensive description, tutorials, reference, examples
• Fully controlled by the database
• Requires the whole DAQ infrastructure

Integrated GUI (IGUI)

• Newish component implemented in Java
• Combines various expert GUIs with ``shift'' overview of the DAQ
• Needs to be customisable by subdetectors (eg calibration runs, subdetector specific displays etc) $\rightarrow$ java beans?