This talk will give an overview in product development during the course of time. Starting from empirical studies conducted in product development research, the application of data-driven methods is discussed. It is shown how Data Mining approaches aid modern product design in extracting design principles. Coming from empirical design rules, Data Mining can enhance those rule-based approaches even further. This talk will give insights in how the digital twin is pushing those boundaries in the future. Lastly, possible approaches for a true digital twin based on holistic data integration are presented.