In spite of the fact that the scattering and albedo operators are defined in a different setting in the linear transport theory, there is a close resemblance between them. In this paper we try to explore this analogy. The scattering operator comes from the evolutionary linear transport system:and it involves a comparison of the dynamics U(t) of the above system with the dynamics U0(t) of the collisionless transport system, the so called advection system: