Structure of the Model

The structure of the GALEN Common Reference Model consists of four parts:

There is no sharp principled dividing line between these four levels. They are defined methodologically and organisationally rather than by a set of strict logical criteria. A model in the GALEN Representation and Integration Language has no sharp dividing line between levels of concepts, only between concepts in the model and the individual patients, their conditions, and the operations actually performed on them. There is a continuum between high level concepts such as Phenomenon or disease and highly specific concepts such as brittle insuline dependent diabetes mellitus or between body part and distal phalanx of the left fourth finger.

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