Annotation Device and Annotation Method

Provided are an annotation device and an annotation method capable of simple and highly accurate annotation. An annotation device for annotation to 3D shape data and implemented using a computer, the annotation device including: an input unit that inputs a 3D CAD model, a text, and label definition information; a calculation unit that generates an annotation data set through annotation processing; a storage unit that stores the generated annotation data set; and an output unit that outputs a processing result of the calculation unit, in which the calculation unit includes an annotation unit that obtains a partial shape of the 3D CAD model and annotation information including a label according to a named entity in the text or the label definition information, and a metadata generation unit that generates metadata that associates the annotation information with partial shapes of the 3D CAD model and heterogeneous format data derived from the 3D CAD model, and stores an annotation data set including the generated metadata, and a 3D CAD model and a text referenced by the metadata in the storage unit.