Application of basic, theoretical-methodological, scientific-professional and expert-applied knowledge and methods for solving concrete problems within the selected area. Within this part of the doctoral dissertation the student studies the problem, its structure and complexity, and on the basis of the conducted analyzes, concludes the conclusions on possible ways his solution. By studying the literature, a student is introduced to methods that are designed for the creative solution of new tasks and engineering practice in their solving. The goal of students activities in this part of the research is to gain the necessary experience through solving complex problems and tasks and identifying opportunities to apply previously acquired knowledge in practice.