Abstract
<jats:p>This article typologically evaluates and compares the five-case and seven-case models of scientific description of the noun declension system of the modern Eastern Armenian literary language. Using facts, arguments, and logical analysis, it demonstrates the obvious advantages of the former and the numerous shortcomings of the latter. These models are also compared with the seven-case model of Grabar (Old Armenian literary language), demonstrating that the seven-case model of Ashkharhabar (New Armenian literary language) is an artificial, forced adaptation of Grabar, as well as Latin and, to some extent, Russian models, whereas the five-case model is independent of other models and adequately reflects the noun declension system of the modern Eastern Armenian literary language. The conclusion is the need to completely abandon the seven-case model in the education system and restore the five-case model. The problem is pressing because the seven-case model is not only unscientific but also violates a number of pedagogical principles and requirements. This problem is not new in Armenian studies. However, this analysis is conducted in a new way, using the modeling method and typological method of scientific analysis, drawing on a number of new arguments.</jats:p>