Semantically rich descriptions of manufacturing machines, offered in a machine-interpretable code, can provide interesting benefits in Industry 4.0 scenarios. However, the lack of that type of descriptions is evident. In this paper we present the development effort made to build an ontology, called ExtruOnt, for describing a type of manufacturing machine, more precisely, a type that performs an extrusion process (extruder). Although the scope of the ontology is restricted to a concrete domain, it could be used as a model for the development of other ontologies for describing manufacturing machines in Industry 4.0 scenarios. The terms of the ExtruOnt ontology provide different types of information related with an extruder, which are reflected in distinct modules that constitute the ontology. Thus, it contains classes and properties for expressing descriptions about components of an extruder, spatial connections, features, and 3D representations of those components, and finally the sensors used to capture indicators about the performance of this type of machine. The ontology development process has been carried out in close collaboration with domain experts.

翻译：以机器可解释代码形式提供的语义丰富的制造机器描述，可在工业4.0场景中带来显著优势。然而，此类描述的匮乏显而易见。本文介绍了为构建名为ExtruOnt的本体所付出的开发工作，该本体用于描述一类制造机器，更具体而言，是执行挤出工艺的机器类型（挤出机）。尽管该本体的范围局限于特定领域，但其可作为开发其他用于工业4.0场景中制造机器描述本体的模型。ExtruOnt本体的术语提供了与挤出机相关的多种信息类型，这些信息体现在构成该本体的不同模块中。因此，它包含用于表达挤出机组件描述、空间连接关系、特征、组件三维表示以及最终用于捕获此类机器性能指标的传感器的类与属性。本体的开发过程与领域专家紧密协作完成。