Global overview of research data repositories: an analysis of re3data registry

Purpose - Data sharing is increasingly being recognized as an essential component of scholarly research and publishing. Sharing data improves results and propels research and discovery forward. Given the importance of data sharing, the purpose of the study is to unveil the present scenario of research data repositories (RDR) and sheds light on strategies and tactics followed by different countries for efficient organization and optimal use of scientific literature.Design/methodology/approach - The data for the study is collected from registry of RDR (re3data registry) (re3data.org), which covers RDR from different academic disciplines and provides filtration options "Search" and "Browse" to access the repositories. Using these filtration options, the researchers collected metadata of repositories i.e. country wise contribution, content-type data, repository language interface, software usage, metadata standards and data access type. Furthermore, the data was exported to Google Sheets for analysis and visualization.Findings - The re3data registry holds a rich and diverse collection of data repositories from the majority of countries all over the world. It is revealed that English is the dominant language, and the most widely used software for the creation of data repositories are "DataVerse", followed by "Dspace" and "MySQL". The most frequently used metadata standards are "Dublin Core" and "Datacite metadata schema". The majority of repositories are open, with more than half of the repositories being "disciplinary" in nature, and the most significant data sources include "scientific and statistical data" followed by "standard office documents". Research limitations/implications - The main limitation of the study is that the findings are based on the data collected through a single registry of repositories, and only a few characteristic features were investigated.Originality/value - The study will benefit all countries with a small number of data repositories or no repositories at all, with tools and techniques used by the top repositories to ensure long-term storage and accessibility to research data. In addition to this, the study provides a global overview of RDR and its characteristic features.