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OIMEL 
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.. toctree::
   :maxdepth: 2


Reality
=======

Things that exist in the real world:

- Concrete Things

  - "Coker-4", a delayed coker
  
  - a printout of "PFD-987"

- Abstract Things

  - "PFD-987"
  
  - the structure of "Coker-4"


Information
===========

Information about reality. Or: Model of reality.

- Not necessarily complete:

  - Completeness impossible for concrete things.
  
  - Completeness can be possible for abstract things ("by definition")


Information Model
=================

Model of Information.

Focus of our work. Cf. reference part.


Meta Model
==========

Model of Information Model.


Background
==========

UML-MOF.

Instance model, class model.

ISO 15926.