  Current science communication has a number of drawbacks and bottlenecks which
have been subject of discussion lately: Among others, the rising number of
published articles makes it nearly impossible to get a full overview of the
state of the art in a certain field, or reproducibility is hampered by
fixed-length, document-based publications which normally cannot cover all
details of a research work. Recently, several initiatives have proposed
knowledge graphs (KG) for organising scientific information as a solution to
many of the current issues. The focus of these proposals is, however, usually
restricted to very specific use cases. In this paper, we aim to transcend this
limited perspective and present a comprehensive analysis of requirements for an
Open Research Knowledge Graph (ORKG) by (a) collecting and reviewing daily core
tasks of a scientist, (b) establishing their consequential requirements for a
KG-based system, (c) identifying overlaps and specificities, and their coverage
in current solutions. As a result, we map necessary and desirable requirements
for successful KG-based science communication, derive implications, and outline
possible solutions.
