gUFO is a lightweight implementation of the Unified Foundational Ontology (UFO) suitable for Semantic Web OWL 2 DL applications. UFO is a mature foundational ontology with a rich axiomatization and that has been employed in a significant number of projects in research and industry. Moreover, it is currently in the process of standardization by the International Organization for Standardization as the ISO/IEC CD 21838-5. gUFO stands out from other foundational ontology implementations (such as those provided for BFO and DOLCE) given its unique support for a typology of types (operationalizing OntoClean guidelines), its reification patterns for intrinsic and relational aspects, and its support for situations and high-order types. gUFO provides well-founded patterns to address recurrent problems in Semantic Web knowledge graphs. In this paper, we present gUFO with its constituting categories, relations and constraints, discuss how it differs from the original UFO reference ontology, elaborate on its community adoption, and systematically position it in relation to existing OWL-based implementations of popular alternative foundational ontologies.

翻译：gUFO是统一基础本体论（UFO）的一种轻量级实现，适用于语义网OWL 2 DL应用。UFO是一个成熟的基础本体论，具有丰富的公理化体系，已在大量研究和工业项目中被采用，目前正由国际标准化组织作为ISO/IEC CD 21838-5进行标准化。gUFO区别于其他基础本体论实现（如BFO和DOLCE的实现）的独特之处在于：它对类型提供独特的分类支持（操作化OntoClean指南）、针对内在方面和关系方面的具体化模式，以及对情境和高阶类型的支持。gUFO为语义网知识图谱中反复出现的问题提供了有根据的解决模式。本文介绍了gUFO的构成范畴、关系和约束，讨论了其与原始UFO参考本体论的区别，详述了其在社区中的应用情况，并系统地将其与现有基于OWL的主流替代基础本体论实现进行了定位比较。