IRMIS

1
IRMIS

• IRMIS-APS, outline, boundary conditions, issues
• D. Dohan, Mar 9, 2005

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• Group leaders - general requirements and
  perspective
• Potential coverage of the IRMIS approach
• Recent Collaboration progress
• User interface XAL/CFW
• Configuration management
• RDB experts - ideas on how to extend the core

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IRMIS - Introduction

• Integrated Relational Model of Installed Systems
• system approach to modeling the accelerator and
  its control system
• integrated coverage of software, hardware and
  cabling
• Collaborative approach
• Goal is to provide re-useable relational database
  and application frameworks .
• Inter-laboratory approach strengthens the
  underlying database and application structures
• The EPICS model is used throughout
  sophisticated high level tools are developed, but
  the user always maintains the ability to look
  under the hood
• Minimalist approach, locally extensible.

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The IRMIS Collaboration

• Initial collaborative effort between SNS and APS
• initiated after Santa Fe EPICS meeting
• series of visits to SNS
• initial crawler tests at SNS
• XAL demonstration/developments
• JERI demonstration and developments
• PV crawler and schema under test at SNS and DESY
• Recent developments this meeting

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Boundary Conditions

• the underlying RDB schema should be easy to
  understand
• a control system engineers relational database
• promotes RDB evolution and exploitation if
  understood by the control system engineer/end
  user.
• site neutral
• no site-specific constructs
• no accelerator specific assumptions
• OS neutral
• RDBMS neutral
• extensible
• although schema changes are expensive (-gt domain
  modeling) we accept them as a fact of life.
  Development effort based on major release phases
  (EPICS model)

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IRMIS PV ERD

• ERDs are cause for (potentially) plenty of debate
• we have different schemae because we abstract or
  conceptualize the problem differently
• IRMIS has no formal domain analysis use
  prototype approach
• S. Lewis, NIF, private communication
• APS crawler and Oracle PV database running for 4
  years
• use this prototype experience in lieu of domain
  analysis?
• New PV crawler and schema now ready for release
• C. Saunders talk