2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6454This overview discusses issues relevant to modeling nucleosynthesis in type II supernovae and implications of detailed studies of the ejecta. After a brief presentation of the most common approaches to stellar evolution and parameterized explosions, the relevance of a number of nuclei to obtain information on the evolution and explosion mechanisms is discussed. The paper is concluded by an outlook on multi-dimensional simulations.Invited talk at the workshop "Astronomy with Radioactivities IV", Seeon, Germany, June 2003; 6 pages, to appear in New Astronomy ReviewsAstrophysicstext