[en] The framework is weak interactions, interpreted as residual (hypercolor) interactions among composite q,l,Wsup(+-) and Z. An effective Lagrangian Lsub(eff) for ''low energies'' (E < or approx. Gsub(F)sup(-1/2)) is derived from 1. a specification of the global chiral symmetry G of weak interactions (for α,αsub(color)->0), 2. local U(1)sub(em)xSU(3)sub(c) gauge invariance and 3. vector boson dominance in the operator form of current-field identities. The result is a massive Yang-Mills Lagrangian with respect to the global group G. Lsub(eff) for q,l,W,Z interactions, basing on G = SU(2)sub(WI) of global weak isospin, turns out to be identical (in its dimension <= 4 operator part) to the Lagrangian of the standard (GSW) model in the unitary gauge without the physical Higgs. Lsub(eff) predictions are argued to closely mimic the GSW predictions due to the chiral nature of G and the smallness of the effective coupling constant. An extension of the scheme to larger symmetry groups as expected from preon models for α,αsub(color)->0 (e.g. G = SU(2)sub(WI)xSU(4)sub(Pati-Salam)) is proposed. This implies the existence of new colored (and uncolored) composite vector bosons and vector dominance in the gluon sector. Lsub(eff) then determines the interactions of these new bosons with quarks and leptons in terms of a few free parameters. Interesting consequences for panti p collider and HERA experiments as well as for precision experiments at low energies emerge. (orig.)