  Let $M$ be a complete Riemannian manifold possibly with a boundary $\partial
M$. For any $C^1$-vector field $Z$, by using gradient/functional inequalities
of the (reflecting) diffusion process generated by $L:=\Delta+Z$, pointwise
characterizations are presented for the Bakry-Emery curvature of $L$ and the
second fundamental form of $\partial M$ if exists. These extend and strengthen
the recent results derived by A. Naber for the uniform norm
$\|{\mathbf{Ric}}_Z\|_\infty$ on manifolds without boundary. A key point of the
present study is to apply the asymptotic formulas for these two tensors found
by the first named author, such that the proofs are significantly simplified.
