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Classification - K+F classification by field of science

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Short description

Classification of research and development activities by field of science. The classification allows for the examination of research units’ R&D data by field of science at one-, two- or three-digit levels.

K+F classification by field of science – short description (pdf, 75 KB)


Code numbers and descriptions of the items of classification.

K+F classification by field of science – structure (xlsx, 12 KB)

Explanatory notes

The explanatory notes determine the contents of the classification items. They help to find the appropriate category in the classification.

Search engine

It supports the quick search in the classification. After searching by code number or text, it displays those items of the classification that contain the relevant code number or text.


Principles and rules of classification to be applied.

Correspondence tables

Conversion key between the items of the current version of classification and those of the previous version.

Legal basis

Legislation ordering the use of the classification.

Predecessor classification (Old versions)

Previous versions of the classification can be found here.

International version of classification

Fields of Research and Development (FORD)

For further assistance in the use of the classification click here.

Information service