In construction projects, the quantification of works and the related planning are critical, interdisciplinary tasks often performed through data extraction from design information models of the building or infrastructure. This paper elaborates on the development and use of a linked data model specifically designed to represent and clarify the information necessary for Quantity Take-Off and Construction planning activities. The model is developed based on existing information ontologies and is designed following the analysis of Quantity Take-Off and planning processes in engineering firms and general contractors. It intends to serve as a reference for both quantification and planning applications and processes. The resulting linked data models are designed to be interoperable with each other and with other construction ontologies such as ifcOWL, DiCon, etc., ensuring coherence with other project information, promoting standardisation of Quantity Take-Off processes, and supporting automated quantity extraction from IFC models.
