“…The development of the prototype (Holzinger et al, 2005) is based on four steps according to Alavi (1984) and Larson (1986): identifying basic requirements, development of a working prototype, implementation and usage ( field study), and revision. Concerning the "intelligent dictionary" in a first step the orthographic areas, categories, and phenomena were constructed in a way to fulfill the scientific, practical, and technical requirements (Edtstadler, 2015) as well as other aspects of a qualitative analysis of orthographic mistakes (Edtstadler, 2015).…”