Last update:
Apr 1, 2000
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Design Patterns for Description-Driven Systems
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G. Chevenier1,
J.-M. Le Goff1,
I. Willers1,
R. McClatchey2,
Z. Kovacs2
- CERN, Geneva, Switzerland
- Centre for Complex Cooperative Systems, Univ. West of England, Frenchay, Bristol BS16 1QY UK
Speaker:
Richard McClatchey
In data modelling, product information has most often been
handled separately from process information. The integration
of product and process models in a unified data model could
provide the means by which information could be shared
across an experiment throughout the system lifecycle from
design through to maintenance. This paper relates
description-driven systems to multi-layer architectures and
reveals where existing design patterns facilitate the
integration of product and process models and where patterns
are missing or where existing patterns require enrichment
for this integration. It reports on the construction of a
so-called description-driven system which integrates Product
Data Management (PDM) and Workflow Management (WfM) data
models through a common meta-model. This CRISTAL system is
being used to store the physics data gathered during HEP
detector construction and to track the progress of CMS
detector assembly. Data stored in the CRISTAL data warehouse
will provide the detector geometry and facilitate
calibration as well as providing a CMS detector knowledge
base for physics reconstruction and analysis programmes.
Presentation:  | Short Paper:  | Long Paper: |
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