This paper presents the methodological aspect of an in-depth analysis of the Slovene Assembly in the exciting period of 1990-1992, when democratically elected deputies changed and adapted the rules for all of society within the framework of socialist parliamentarism, and ultimately adopted independence acts. The research was carried out at the Institute of Contemporary History. The main area of interest was how the parliament per se operated at the time of transformation in 1990- 1992, and the conduct of the deputies/delegates. The analysis focused on verbatim transcripts of the Assembly's sessions. Of course, such an approach encounters many obstacles. The basic methodological problem is, of course, the great amount of sources (in 1991 alone the deputies uttered over 5 million words). We, the researchers, have therefore decided to take a different and methodologically innovative approach to the analysis. Our analysis will be conducted using digital methods and tools.