Approaches to the construction of the DP-model of file systems

Approaches to the creation of the DP-model of file systems are listed in the article. DP-model family of computer systems with discretionary management of access is the basis of this approach. Specific conditions of subject's functioning, rights transfer conditions and realization of information streams are considered in the article on the basis of DP-model. Also sufficient conditions for realization of forbidden information memory streams in file systems are proved.