Description: This training material provides the methodology and conclusions on the study conducted to identify existing ontologies, standards and data models in the Architecture, Engineering and Construction (AEC) industry. The assessment of AEC ontologies supports the development of the AEC3PO Ontology. This training material targets IT industry professionals, Academic Researchers in the field, Technology developers, and Regulatory Authorities. Learning objectives: Understanding about AEC ontology field Awareness of AEC ontology classification, metrics and assessment Reflect on AEC ontologies and future developments