The z transform and the DTFT can be transformed into one another the following two ways:
DTFT{x[n]r^(-n)} = Ztransform{x[n]}
Ztransform{x[n]} evaluated at z = e^(jw) = DTFT{x[n]}
The z transform and the DTFT can be transformed into one another the following two ways:
DTFT{x[n]r^(-n)} = Ztransform{x[n]}
Ztransform{x[n]} evaluated at z = e^(jw) = DTFT{x[n]}