  If supersymmetry (SUSY) will be discovered, successful models of flavour not
only have to provide an explanation of the flavour structure of the Standard
Model fermions, but also of the flavour structure of their scalar
superpartners. We discuss aspects of such "SUSY flavour" models, towards
predicting both flavour structures, in the context of supergravity (SUGRA). We
point out the importance of carefully taking into account SUSY-specific
effects, such as 1-loop SUSY threshold corrections and canonical normalization,
when fitting the model to the data for fermion masses and mixings. This
entangles the flavour model with the SUSY parameters and leads to interesting
predictions for the sparticle spectrum. We demonstrate these effects by
analyzing an example class of flavour models in the framework of an SU(5) Grand
Unified Theory with a family symmetry with real triplet representations. For
flavour violation through the SUSY soft breaking terms, the class of models
realizes a scheme we refer to as "Trilinear Dominance", where flavour violation
effects are dominantly induced by the trilinear terms.
