  The concept of z-scaling reflecting the general features of particle
substructure, constituent interaction and mechanism of particle formation is
reviewed. Experimental data on the cross sections obtained at ISR, SpS and
Tevatron are used in the analysis. The properties of data z-presentation, the
energy and angular independencies, the power law, A- and F-dependencies, are
discussed. The use of z-scaling to search for new physics phenomena in
hadron-hadron, hadron-nucleus and nucleus-nucleus collisions is suggested. The
violation of z-scaling characterized by the change of the fractal dimension is
considered as a new and complimentary signature of nuclear phase transition.
