In the conditions of the ongoing formation of a country with a market organization of public relations, the search for means and methods of unambiguous assessment of the qualification level of subjects of both educational and professional activities is becoming more and more urgent. The problem is the inconsistency of the paradigm and methods of assessing the knowledge and abilities of subjects. Purpose of the article is to develop proposals and recommendations to overcome difficulties in the development and implementation of the National Qualification System of the Republic of Kazakhstan. The method of content-genetic logic of ascent from the abstract to the concrete, a speculative language of functional and schematic images of thought was used. A comparative analysis was carried out and contradictions were revealed in the approaches to the development of the National Qualification System of the Republic of Kazakhstan of the Ministry of Education and Science of the Republic of Kazakhstan and the Ministry of Labor, Employment and Social Protection of the Population of the Republic of Kazakhstan. Numerous semantic terminological "gluing", incorrect definitions in the developed qualification documents of such keywords as activity, employment, work, labor, profession, position, knowledge, abilities, qualifications, etc. have been established. In order to eliminate the conceptual confusion and ambiguity of the approved normative documents, it is recommended to articulate their names in the same type of task-qualification format. Relevant examples are given. A special role in ensuring a high qualification level of all subjects belongs to teaching staff. Therefore, it is recommended to improve their functional literacy, update the pedagogical paradigm and develop a system for assessing the qualification level of education workers. To ensure the unambiguity, the conceptual status of the terms used in the qualification procedures, it is recommended to use together an innovative method of content-genetic logic and a speculative language of functional schematic images that allow visualizing, checking and correcting the concepts being constructed according to the criteria of morality, logic and consistency. As an example, the scheme of logical derivation and differentiation of the concepts of position, role, profession, specialty, position, as well as a typical unit of professional activity is given.