.. _OpenCMISS-concepts:

OpenCMISS concepts
==================

OpenCMISS has the following top level objects.

* :ref:`OpenCMISS-basisfunctions`
* :ref:`OpenCMISS-coordinatesystems`
* :ref:`OpenCMISS-regions`
* :ref:`OpenCMISS-problems`
* Computational environments
* Base system(Diagnostics, I/O etc.)

.. figure:: /OpenCMISS/images/OpenCMISS-top-structure.png
   :align: center
   
   **OpenCMISS top-level structure**