Author: Müller, R.
Paper Title Page
MOPKN027 BDNLS - BESSY Device Name Location Service 154
  • D.B. Engel, P. Laux, R. Müller
    HZB, Berlin, Germany
  Initially the relational database (RDB) for control system configuration at BESSY has been built around the device concept [1]. Maintenance and consistency issues as well as complexity of scripts generating the configuration data, triggered the development of a novel, generic RDB structure based on hierarchies of named nodes with attribute/value pair [2]. Unfortunately it turned out that usability of this generic RDB structure for a comprehensive configuration management relies totally on sophisticated data maintenance tools. On this background BDNS, a new database management tool has been developed within the framework of the Eclipse Rich Client Platform. It uses the Model View Control (MVC) layer of Jface to cleanly dissect retrieval processes, data path, data visualization and actualization. It is based on extensible configurations described in XML allowing to chain SQL calls and compose profiles for various use cases. It solves the problem of data key forwarding to the subsequent SQL statement. BDNS and its potential to map various levels of complexity into the XML configurations allows to provide easy usable, tailored database access to the configuration maintainers for the different underlying database structures. Based on Eclipse the integration of BDNS into Control System Studio is straight forward.
[1] T. Birke Relational Database for Controls Configuration Management, IADBG Workshop 2001, San Jose.
[2] T. Birke Beyond Devices - An improved RDB Data-Model for Configuration Management, ICALEPCS 2005, Geneva
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