The topic of this master’s thesis is The Perception of Primary School Teachers on eDnevnik (e-Class Register). e-Dnevnik is a web application used for keeping the class register in electronic format, which allows participants in the educational process to input and review data. The thesis consists of two parts: the theoretical part and the qualitative research. All important components of educational documentation, i.e. e-Dnevnik, are referred to and analysed in the theoretical part. For the purpose of this paper, a qualitative research has been conducted. The aim of the research was to gain insight into the perception, i.e. the similarities and differences between the thoughts and opinions, of primary school teachers, and to determine their general attitude towards the contemporary form of keeping the class register with the help of e-Dnevnik. The research examined teachers’ satisfaction with the current e-Dnevnik performance, whether they preferred paper-based class registers or the form of class registers used today, whether they had ever experienced difficulties while using the e-Dnevnik, as well as what the pros and cons of using the e-Dnevnik are. Three subjects – one male and two female primary school teachers – have been chosen for this research. The years of primary school teaching experience vary among the participants. A semi-structured interview was used to conduct the research, and the respondents could answer the questions freely and uninterruptedly.