The content of the map itself is about concepts related to the definition of a terminology (Reference: TBD). But it could be also analyzed according different domain of knowledge such as ontology and semiotic., and how they are applied through knowledge management systems, linked data, Natural Language Processing of Model Based Approach (System Engineering, Enterprise Architecture, etc.) Here is a quit interesting article explaining, in French, what semiotic is for courageous non-specialists: https://www.unilim.fr/actes-semiotiques/5961