“…The matching can be described as a system with the subsystems trends, skills, job profiles, employee, task, machine and training item, as synthesized from the scanned papers [16], [17], [18], [19], [20], [21], [22] and [23]. These sub-systems and the matching between them occurred in the papers, sometimes differently, e.g., learning program instead of training [16]. Also, according to [17] "skills" could be derived into skills, knowledge and competences.…”