THE HUMAN FACTOR STRUCTURE
The article presents the substantiation of the internal structure of the human factor, which is a collection of several subfactors - physiological, psychological, personal, competence, ergonomic and organizational. The external structure of the human factor, consisting of seven levels, separated by a cause-and-effect chain at different distances from the final event, is justified. In addition, a nomenclature of the human factor based on internal and external structures is proposed. This nomenclature is a system of letters on the basis of which the classification and qualification of the human element is made in relation to a particular marine casualty or incident.