Persistent identifiers (PIDs) have so far only been assigned at study or dataset level. However, researchers usually only use a subset of the variables in a dataset, which they then refer to through textual descriptions that are often semantically ambiguous. The aim is to develop a scalable and secure technical solution to reference elements below the dataset level, e.g. survey variables, within an already registered study with a DOI. This not only allows variables to be cited unambiguously, but also enables the sustainable identification of significant data objects and thus improves their reusability, also in machine-readable form, e.g. via new FAIR-compliant interfaces such as the Digital Object Interface Protocol. Another added value of the service is that links between variables, e.g. across different waves of a study, can also be stored in a standardized way and across institutions.
Service: Da|ra registration agency for social and economic data
Date of provision: 12/23, full-stack implementation of the infrastructure