EN
The methods for analyzing cross-classified tables are usually to test relations between two variables taken one pair at a time. Further development of those methods allowed to move from two dimensional tables to high dimensional tables, where dimensionality of a cross-table refers to the number of variables. It allowed to transform nonmodel- based to model-based methods providing the equation of a mathematical model, the use of estimation method and variety of visualizing tools. This paper describes how complex qualitative data may be described by a mathematical model. One of the method presented is log-linear analysis.