 The simplest example of a POVM is a standard quantum observable, corresponding to a self-adjoint operator \(A\) on the Hilbert space of quantum states (i.e., wave functions). For Bohmian mechanics, more or less every “measurement-like” experiment is associated with this special kind of POVM. The familiar quantum measurement axiom that the distribution of the result of the “measurement of the observable \(A\)” is given by the spectral measure for \(A\) relative to the wave function (in the very simplest cases just the absolute squares of the so-called probability amplitudes) is thus obtained.