Product Circularity Ontology – Design, Development, and Validation

The application of the proposed framework is demonstrated using a semantic CW data model. The semantic data model is also called ontology. The simple knowledge engineering method was selected for the ontology development. A detailed discussion of the seven steps associated with this ontology engineering method and its application in the research is provided in this chapter. The steps include the following: determine the domain and scope of the ontology, consider the reuse of ontologies, enumerate important terms in the ontology, define classes and class hierarchies, define the properties of classes, define the facets of the slots, and create instances. The ontology is prefixed as PROduct CIRcularity Ontology (PRODCIRO). Further to design and development, this chapter discusses the outcomes of semantic and syntactic validation conducted to evaluate the attributes and their relations established in PRODCIRO. The chapter concludes by showing a sample query developed using SPARQL Protocol and Resource Description Framework Query Language to extract the knowledge from PRODCIRO.