The space of scientific knowledge is understood as a system
of knowledge from various fields of science tested by the scientific community. The Common Digital Space of Scientific Knowledge (CDSSK) is a digital environment into which information resources and objects that
have been tested by the scientific community and that reflect scientific
knowledge from a different fields of science are integrated. The common digital space of scientific knowledge consists of a set of thematic subspaces related to various areas of science, built according to common principles. The first step towards the implementation of the CDSSK is the development of its
ontology, i.e. a multi-level system of concepts describing resources and objects of subject areas, concepts, terms and connections between them,
characterized by an open hierarchical and dynamic structuring, oriented both
for storing existing knowledge and for extracting new ones. Since the CDSSK
is a fundamentally new information environment, there are a number of
significant problems on the way to its implementation. The paper deals with
the problems and tasks of forming such a space and developing tools for
implementation and support the CDSSK