The deliverable describes the rationale for creating the Heritage Digital Twin (HDT) and its Ontology (HDTO), as the core ontology for organizing the data forming the ECCCH’s Knowledge Base and provides a detailed description of its classes and properties, along with concrete examples and references to CIDOC-CRM extensions the HDTO refers to. Currently, at this page - https: //isl. ics. forth. gr/ontology/echoes/html/HDTᵥ1. 1. html you can navigate through the HDTO’s classes and properties.
Hermon et al. (Fri,) studied this question.