The Metadata Ecosystem of DataID.

The rapid increase of data produced in a data-centric economy emphasises the need for rich metadata descriptions of datasets, covering many domains and scenarios. While there are multiple metadata formats, describing datasets for specific purposes, exchanging metadata between them is often a difficult endeavour. More general approaches for domain-independent descriptions, often lack the precision needed in many domain-specific use cases. This paper introduces the multilayer ontology of DataID, providing semantically rich metadata for complex datasets. In particular, we focus on the extensibility of its core model and the interoperability with foreign ontologies and other metadata formats. As a proof of concept, we will present a way to describe Data Management Plans (DMP) of research projects alongside the metadata of its datasets, repositories and involved agents.