Two Software Packages for Computer-Assisted Textual Data Analysis in Research Involving Semi-Directive Interviews: Alceste and Hyperbase. This article discusses the contribution of two textual data analysis computer programs. Alceste and Hyperbase. to producing results that can be communicated, verified and contested by other researchers. The two programs perform a uniform and extensive analysis of any corpus and quickly identify the points of resemblance and difference between the discourse of various individuals or groups of individuals. The programs' limits are specified, but the programs provide clear support in the description of a corpus and the interpretation of discourse recorded during research interviews.