Mid-level ontologies are used to integrate data across disparate domains using vocabularies more specific than top-level ontologies and more general than domain-level ontologies. There are no clear, defensible criteria for determining whether a given ontology should count as mid-level, because we lack a rigorous characterization of what the middle level of generality is supposed to contain. Attempts to provide such a characterization have failed, we believe, because they have focused on the goal of specifying what is characteristic of those (...) single ontologies that have been advanced as mid-level ontologies. Unfortunately, single ontologies of this sort are generally a mixture of top- and mid-level, and sometimes even of domainlevel terms. To gain clarity, we aim to specify conditions for membership in what we call the middle architecture, which consists solely of mid-level ontologies. (shrink)

This month’s APA Blog Substack Newsletter extends a discussion with Barry Smith, who is a Distinguished Julian Park Professor of Philosophy and Professor of Biomedical Informatics, and Computer Science and Engineering at the University at Buffalo. He is also Director of the National Center for Ontological Research and a lead developer of Basic Formal Ontology (BFO), an international standard top-level ontology (ISO/IEC 21838-2) used by over 700 ontology development groups across the world. Barry’s work led to the (...) formation in 2005 of the Open Biological and Biomedical Ontologies (OBO) Foundry, a set of resources designed to support information-driven research in biology and biomedicine. He also contributes to ontology projects in the military and security domains and is one of the founders of the Industrial Ontologies Foundry (IOF), whose goal is to advance interoperability of information systems in the industrial domain. Now he and his University at Buffalo (UB) colleague and Co-Director of the National Center for Ontological Research John Beverley lead what one might call the academic arm of the Department of Defense and Intelligence Community Working Group (DIOWG), in which the principles of the OBO Foundry are being applied in the defense and security domains. (shrink)