Meeting Minutes						      February 25, 2002
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Present: Andrei Mayorov, Andrey Zatskerlyaniy, Bob Kehoe, Lisa Chabalina,
Michiel Sanders, Harrison Prosper, Stu Fuess, Ursula Bassler, Florencia
Canelli, Linda Stutte, Pushpa Bhat.
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Examine Manager
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Pushpa talked about a common control & communications package that can be
plugged into all examines (see talk slides).  This will take care of a variety
of initializations, communicate with all other entities such as the Data
Distributor and Graphical interfaces (Histoscope or ROOT-GUI), and manage end
of processing or end of job tasks.  It is currently being implemented in a
single thread and uses D0Framework dataflow interfaces or hooks.

Stu suggested that it may have to use multiple threads to perform some
asynchronous activities.  He also suggested that one should collect useCases
for ExamineMgr and write down the specifications before coding.  Some
discussions ensued.  It was agreed upon that pushpa will compile and prepare
specifications.  There were already requests for transferring information to
databases, archiving histograms, etc.

Online Code Release Discussion (see talk slides)
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Currently data acquisition activities and not examines, primarily, determine
which code release is made available on the online machines.  Stu said that it
is possible that we would have a more recent version made available for
examine work.  But, one needs to make sure that the code works with the new
data distributor code.  There were also questions about whether the examine
codes will work on newer online machines.  This needs to be tested.

CFT Examine
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Andrei gave a brief status report on CFT examine.  He said the status has been
quite stable.  There are about 40 histograms that shifters look at.  There are
no template histograms currently available (?).  Pushpa requested that
everyone send links to documentation for respective detector examines and to
files of template histograms.

Physics Examine
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Michiel reported on physics Examine and some timing studies (see talk slides).
As was decided during the informal discussion last week, he is testing some
macros to access ROOT histograms and a mechanism to browse them in update mode.
Florencia is also looking at this possibility of a ROOT Browser and so is
Harrison (who will get in touch with Rene Brun to request this feature in
TBrowser).  Andrei Mayorov has the updating feature for ROOT histograms in his
eBrowser.  We will see if that can be utilized for ROOTBrowser.

ROOT-GUI
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The response time continues to be the main concern.  Florencia says that >7
histograms starts to cause a lot of delay.  To display a Lego plot she needs
to wait for about 30 seconds.  The cause may be because ROOT-GUI is trying to
transfer histogram objects via network.  She will investigate using xgooey
only to Browse the ROOT Histograms.