[en] The purpose of this talk is to discuss the present status of scaling violations in deep inelastic lepton-nucleon scattering processes. Specifically, I will discuss in great detail which experimentally measured structure functions (or moments thereof) have to be used in order to discriminate between various field theories of the strong interactions such as (non-abelian) QCD, abelian vector-gluon, non-abelian scalar-gluon, and abelian scalar-gluon theories. Moreover I will delineate the sensitivity of certain structure functions to the fundamental couplings of the theory. (orig./WL)