Abstract: Over 20 years of development of Russian judicial medical dermal glyphic studies show that the it may be applied only via creating computer software. It is undoubted that the "Dermatogliphica" software, which was developed in 124 SML in 1996 was a significant achievement of the practical dermal glyphic studies. However,  search and definition of elements was by visual examination, and marking was done by hand, which included a subjective element into the complex of identification issues  resolved based on dermal glyphic studies. The article is aimed at minimizing the influence of subjective factor when interpreting dermal glyphic elements. In order to create such a classification, new decisions on structural basis for the papillary pictures and their coordinate basis, method for the ridge count and other characteristics of the papillary pictures.   Dermal glyphic studies and dactylography have many classifications, which were developed depending on the goals, which needed to be achieved in a certain branch of science (clinical medicine, judicial medicine, criminalistic anthropology, etc.). That is why there is a large variety of sub-types of curves, loops and curls depending on height and orientation of the pattern, its symmetry or assymmetry, forms and structure of lines in the central part of the pattern and other characteristic features, reflecting the details in the structure of the papillary pattern, and this work includes an attempt to provide their mathematical description.