Totally chaotic poissonian-like sources in multiparticle production processes?

We discuss yet another possible approach to the systematic behaviour of the so called chaoticity parameter λ observed in the analyses of the Bose-Einstein correlations between identical particles in multiparticle production processes. It explains in a natural way the observed behaviour of λ for different reactions and energies. Its consequences for behaviour of moments of multiplicity distributions and for some recent cosmic ray experiments are also indicated.