The paper concerns the extension of the Heritage Digital Twin Ontology introduced in previous work to describe the reactivity of digital twins used for cultural heritage documentation by including the semantic description of sensors and activators and all the process of interacting with the real world. After analysing previous work on the use of digital twins in cultural heritage, a summary description of the Heritage Digital Twin Ontology is provided, and the existing applications of digital twins to cultural heritage are overviewed, with references to reviews summarizing the large production of scientific contributions on the topic. Then a novel ontology, named Reactive Digital Twin Ontology is described, in which sensors, activators and the decision processes are also semantically described, turning the previous synchronic approach to cultural heritage documentation into a diachronic one. Some case studies exemplify this theory.

翻译：本文旨在对先前研究中提出的文化遗产数字孪生本体进行扩展，通过纳入传感器与执行器的语义描述及其与现实世界交互的全过程，以描述用于文化遗产记录的数字孪生系统的反应性。在分析数字孪生在文化遗产领域应用的现有成果后，本文首先概述了文化遗产数字孪生本体，并综述了数字孪生在文化遗产中的实际应用案例，同时引述了总结该领域大量科研成果的综述文献。随后，本文提出了一种名为反应式数字孪生本体的新型本体模型，其中对传感器、执行器及决策过程进行了语义化描述，从而将先前静态的文化遗产记录方法转变为动态演进的记录体系。若干案例研究具体阐释了该理论框架。