1. A method for analyzing changes in a software code, the method comprising: inputting a plurality of different versions of a plurality of software artifacts to a change analysis device; deriving design constructs of the software code of the software artifacts by using an abstract syntax tree analysis; comparing the software code differences between the different versions of each of the software artifacts; classifying the derived design constructs of each of the software artifacts according to the compared software code differences; and outputting a visualization of the design constructs of each of the software artifacts, which visualization is structured according to the classification of the design constructs.