NOBUGS 2004 Conference

New Opportunities for Better User Group Software

October, 18-20, 2004 at PSI, Switzerland

Abstract Submitted for NOBUGS2004

ISIS Data, Metadata, Proposals and the CCLRC Data Portal

Damian Flannery

The storage, retrieval and management of data is fast becoming a major concern for all large scale facilities. In addition to the 20 years worth of archived raw data, the ISIS facility produces ~700GB of Neutron/Muon data each year, and with the introduction of Target Station II, this rate of data collection is set to rise still further. Looking to the future, the full value of these data resources will only be realised if they are easily searchable, accessible and reusable. To this end, a number of significant software developments are taking place at ISIS. These include a new electronic proposal system (ISIS On-line Proposal System) which automates the submission process and provides access to a rich source of metadata which can be fed directly into the experimental setup; the migration towards the use of a Storage Resource Broker (SRB) for ISIS data storage which provides heterogeneous access to resources based on their logical names rather than their physical names or locations; and more importantly, the development of a metadata catalogue (ICAT) which is comprised of information describing each experiment and also links to any associated raw and log files. Such a catalogue provides many opportunities, from the capture of an instrument configuration at a particular point in time, to the tracking of an experiment from conceptualization (proposal) to its completion (publication). Furthermore, the ICAT will be exposed to the CCLRC Data Portal enabling all ISIS data to be searched and retrieved along with data from many other facilities contributing to the CCLRC Data Portal project (see

Abstract File: abstract00147.txt


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