Data types and persistent identifiers in

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Data types and persistent identifiers in the Deep Carbon Observatory Data Portal Xiaogang (Marshall) Ma (max7@rpi.edu), John Erickson, Patrick West, Stephan Zednik, Peter Fox Tetherless World Constellation, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, USA ADOPTION Background The Research Data Alliance (RDA) - Data Type Registry (DTR) working group addressed a core issue of data interoperability: to parse, understand, and potentially reuse data retrieved from others. The RDA - Persistent Identifier Information Types (PIT) working group addressed the essential types of information associated with persistent identifiers (PID). The Deep Carbon Observatory (DCO; http://deepcarbon.net) Data Portal enables centrally-managed digital object identification, object registration and metadata management. DCO anticipated a large number of digital object registrations, and therefore needed an appropriate mechanism to curate and reuse the registered information. Initial Results Updates to the DCO Ontology: A new class dco:DataType. Each specific data type is an instance of it An object property dco:hasDataType linking a dataset and a data type A collection of other properties associated with the class dco:DataType Research Questions Each registered data type needs a stable & resolvable PID Annotate data types with formal & specific semantics Each registered object, such as a dataset or a data type, has a unique identifier called DCO ID, which implements the global Handle System. (Image credit: Ainsley Seago, PLoS Biology) Nature of efforts The primitives in a DTR are comparable to a list of BASIC DATA TYPE classes in the DCO ontology, such as Dataset, Image, Video, and Audio, etc. A registered DCO dataset is regarded as an instance of one of those basic data type classes. It is possible to further annotate a registered dataset with the SPECIFIC DATA TYPES defined within a DTR, and each data type has a unique PID. Future Works Analyze more use cases relevant to data types in the DCO community Refine the schema for the annotation and provenance of specific data types Interoperability between DCO specific data types and data types registered in other DTRs Get a copy of the poster at: