  The locality issue of quantum mechanics is a key issue to a proper
understanding of quantum physics and beyond. What has been commonly emphasized
as quantum nonlocality has received an inspiring examination through the notion
of Heisenberg picture of quantum information. Deutsch and Hayden established a
local description of quantum information in a setting of quantum information
flow in a system of qubits. With the introduction of a slightly modified
version of what we call the Deutsch-Hayden matrix values of observables,
together with our recently introduced parallel notion of the noncommutative
values from a more fundamental perspective, we clarify all the locality issues
based on such values as quantum information carried by local observables in any
given arbitrary state of a generic composite system. Quantum information as the
{\em `quantum' values} of observables gives a transparent conceptual picture of
all the. Spatial locality for a projective measurement is also discussed. The
pressing question is if and how such information for an entangled system can be
retrieved through local processes which can only be addressed with new
experimental thinking.
