Taking a constructional turn to radically enrich a top ontology’s foundation: a case history

We aim to establish that there is at least one role for constructionalism in applied ontology by giving the case history of an early example of a case where the foundations of a top-level ontology are constructionally refactored. What we have called ‘taking the constructional turn’. The example is the BORO foundational ontology which has, over the last decade, been taking this turn. The paper starts by providing an evolutionary context for the case history. It then provides a chronological profile of the constructional turn and the radical enrichment it delivered. This clearly establishes the feasibility and benefits of this specific role for constructionalism in applied ontology.