Speaker
Mr
G. Roediger
(CORPORATE COMPUTER SERVICES INC. - FERMILAB)
Description
A High Energy Physics experiment has between 200 and 1000 collaborating physicists
from nations spanning the entire globe. Each collaborator brings a unique
combination of interests, and each has to search through the same huge heap of
messages, research results, and other communication to find what is useful.
Too much scientific information is as useless as too little. It is time consuming,
tedious, and difficult to sift and search for the pertinent bits. Often, the exact
words to search for are unknown, or the information is badly organized, and the
pertinent bits are not found. The search is abandoned, the time is lost, and
valuable information is never communicated as it was intended.
Much of a collaboration's information is in the individual physicists paper
logbooks. The physicists record important and pertinent information for their
research. They save the log books to refer to it later, copy pages, and distribute
them to their collaborators who share their interest and research.
Electronic Logbooks are now used in the control room of large detectors during the
acquisition phase. They have proven useful for communicating the status of the
detector and to keep the history of lab sessions in a format that can be queried and
retrieved quickly. It has enabled remote monitoring of the detector and remote
emergency help.
We have implemented an electronic Control Room Logbook, called CRL. It is used in
the D0 experiment's detector control room for the Run II acquisition. As of mid
April 2004 there are over 305,000 entries in the D0 logbook, all viewable and able
to be annotated from the web. Other experiments such as CMS, MiniBoone, and Minos
have also adapted the CRL. These experiments all have very different needs, so they
all configured and customized the CRL in many different ways. The HEPBook will move
the logbook from the control room to the personal and collaboratory HEP notebook. In
this paper we will review the HEPBook technology and capabilities and discuss the
new HEPBook architecture. Among the topics discussed will be the use of Java
reflection to recursively produce an XML representation of an entry, the ability to
save personal entries as well as share entries among a collaboration through
multiple repositories which incorporate software agent technology, interface with
the GRID, and implement multiple security models. The HEPBook runs on all Java
platforms including Apple, Win32, and Linux. A brief demo will be given of the
HEPBook.
Primary authors
Mr
G. Roediger
(CORPORATE COMPUTER SERVICES INC. - FERMILAB)
P. POMATTO
(FNAL, Batavia, USA)
