  Contextuality is a signature of operational nonclassicality in the outcome
statistics of an experiment. This notion of nonclassicality applies to a
breadth of physical phenomena. Here, we establish its relation to two
fundamental nonclassical entities in quantum theory; measurement
incompatibility and steering. We show that each is necessary and sufficient the
failure of operational contextuality. We exploit the established connection to
contextuality to provide a novel approach to problems in measurement
incompatibility and steering.
