The design process has always been a complicated, long and iterative procedure and this is particularly true in the case of an aviation jet engine, therefore this thesis, which was carried out inside Avio Aero who is a world leader in the design of low pressure turbine, has the aim of finding and implementing new and innovative methods to achieve a smarter, more cost efficient and more optimized design process, in this case for the low pressure turbine component. But first of all, a brief introduction of an aviation jet engine is given, going over all the main principles, the significant factors that influence the performances of an aviation engine, as well as describing the most common configurations and architectures of an aviation engine, especially the most used one that is the turbofan architecture.