In this paper it is assumed that the principal aim of
bibliographic classification systems is to consider
and organize contents of books in order to create
semantic access points in catalogues for document
retrieval, instead of performing just the function of
arranging books in library shelves and retrieving
them from physical location.
Knowledge recorded in books and documents
shows a multidimensional structure, which reflects
the multiplicity of concepts and meanings. On the
contrary, traditional and hierarchical library classification
systems, generally speaking, force the multiplicity
of meanings and the multidimensionality of
thought in a monodimensional structure-a set of
classes, divisions and subdivisions-which consists of
a unique linear dimension.