This chapter presents some closing thoughts on the concepts covered in part 1 of this book. The part enables the connection of an approach of technological duality whose analysis includes all the characteristics of this complex technological expression with an analysis of the process of knowledge dissemination highlighting the role of knowledge and its characteristics in its potential of dissemination within technological systems. It aims to propose a consistent framework of analysis going from the general (dual system of innovation) to the particular (dual process of knowledge dissemination). The part it goes beyond the defense specificity of the generally proposed analyses of technological duality and addresses the subject in a more traditional manner.