Technical Report 328, c4e-Preprint Series, Cambridge

Authors: Md Hanif Seddiqui, Feroz Farazi, Fausto Giunchiglia, Mayukh Bagchi, Simone Bocca, Jethro Akroyd, Sebastian Mosbach, Farhadur Arifin, Rasel Ahmed, Miah Arman, and Markus Kraft*

Reference: Technical Report 328, c4e-Preprint Series, Cambridge, 2024

Associated Themes:
 

• Material Passport Ontology to represent manufactured product data and metadata
• Material passport knowledge graph to measure metrics of circular economy
• SHACL constraints for accurate, consistent, and reliable knowledge graph

This paper introduces a new Material Passport Ontology (MPO) that is designed to support the attainment of a circular economy. The ontology was developed using a formal ontology engineering method. The MPO is organised into facets describing the physical properties, composition and sustainability, biological and other properties of products, components and materials. A set of SHACL constraints was developed to validate data, ensuring the maintenance of an accurate, consistent and reliable knowledge graph. The information provided by the knowledge graph enables the assessment of the circularity of products, components and materials. The MPO was validated using reasoning tools and in collaboration with domain experts from industrial partners representing two use cases -- the manufacture of components for motor vehicles and blades for wind turbines -- demonstrating its effectiveness and applicability in identifying recyclable materials, maximising resource reuse, and enhancing sustainability practices, thereby facilitating the transition to a circular economy. The MPO, along with the SHACL constraints, enhances transparency and reliability among stakeholders, aiding the identification of recyclable materials and maximising resource reuse.

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