Theoretical results in the tau-model are discussed in the context of
Bose-Einstein correlations in e+e- annihilations at LEP1 and LEP2 as well as
that of relativistic heavy ion collisions at SPS and RHIC.Comment: 4 pages, invited talk at the XXXIIth Int. Symp. Multiparticle
Dynamics, Alushta, Crimea, Ukrain