Advice Sought for Distributed Monitoring of Spacecraft Data Using X

[Ursula Schwuttke]

We have developed an application program in Sunview that monitors and
analyzes telemetry data from multiple spacecraft subsystems.  Each
subsystem has its own monitoring and analysis process, and depends on a
server to receive data.

We now want to port this application to X, and distribute it among several
cooperating workstations.  In this new environment, a user at any
workstation will need to be able to view displays from any or all
spacecraft subsystems, and  all of his user-interface entries will need to
affect a single set of global data base files.  In addition, the
individual subsystem analysis processes will need to communicate the
results of their analysis with a separate process that coordinates the
findings of the individual processes and does system level analysis based
on these findings, perhaps requesting additional information from one or
more of the subsystem processes.

Is there anyone out there who has done something similar, with whom we
could exchange information on software design issues?  (Our primary
concerns are interprocess communication and issues associated with a
single client driving multiple X-servers.)

Please reply to ursula at nereid.JPL.NASA.GOV and john at triton.JPL.NASA.GOV.