The following presentation is a joint work with Giorgio Orsi on Software Refactoring, is one of the intermediate product of the course Argomenti Avanzati in Ingegneria del Software (Advanced Topic of Software Engineering). It is just a summa of the existing approaches, and some of our opinions on how a disciplined Refactoring can help to reduce the gap between Research and Didactic, by help in the integration of student activities (Projects and Thesis) in the main stream of professors research. Refactoring can indeed fill up the gap from the so called student-ware and the final software.