Following the definition of key concepts and technical terms, the literature review synopsis, and the presentation of the research questions and ex-ante propositions, the research design and the methodology are introduced. The nature and the characteristics of qualitative research, and the reasons for choosing grounded theory for the research design, while rejecting a mixed-methods approach, are presented. As set out in detail, semi-structured expert interviews, literature review, and systematic observations were chosen, in line with the triangulation of methods. The non-random, purposeful sample selection for semi-structured interviews is introduced, including types of sampling, criteria for selection, and the division of respondents into groups of interviewees. Types of data limitation are identified, and strategies to mitigate these and minimise bias are presented. Thereafter, data management and data analysis processes are outlined, and notes on the reliability and validity of qualitative research are shared.