Ontology of time metrology vocabulary

The advent of the digital era has put forward an urgent need for the digitization of metrology, and the digitization of metrology vocabularies is one of the fundamental and critical steps to achieve the digital transformation of metrology. Metrology vocabulary ontology can facilitate the exchange and sharing of data, which is an important way to achieve the digitization of metrology vocabulary. Time metrology vocabulary is a special and important part of the whole metrology vocabulary, and constructing its ontology can reduce the problems caused by semantic confusion, help the smooth progress of metrological work, and promote the digital transformation of metrology. Currently, the existing ontology for metrology vocabulary is primarily the MetrOnto ontology, but it lacks a systematic description of the vocabulary of time metrology. Based on Web Ontology Language (OWL), a bilingual time metrology vocabulary ontology OTMV is designed and constructed using a seven-step ontology development methodology.OTMV provides a standardized, interoperable, and unified architecture, which realizes the bilingual digital representation of time metrology vocabulary in the national standards of China, metrological technical specifications JJF1180-2007 "Glossary and Definition of Time and Frequency Metrology", JJG 2007-2015 "Time and Frequency Measuring Instruments", and relevant materials published by the China National Institute of Metrology.