Aggregate and component entities in RDA: Model and description

Based on the distinction between model and description in Resource Description and Access (RDA), the modeling and description of aggregate and component entities in RDA was examined. Guidelines and instructions related to such modeling were extracted from RDA and reconciled. After introducing additional assumptions, five possible model patterns of aggregate and component entities were developed. Then, the mapping between these model patterns and the manifestation types was clarified, revealing which model patterns are applicable to a given type of manifestation. Finally, RDA instructions on descriptions for aggregates/components were examined, and it was clarified that they do not have any conflict with the modeling.