Research data management is the process of transforming scientific evidence (i.e., data) into a machine-processable, FAIR research outcome.
RDM relies both on data stewardship (in order to ensure data quality) and on digital preservation (so that data remains readable as long as it retains value). It complies with Open Science and TRUST principles.
See also: DCC Digital Curation Glossary, entry “Research Data Management”, https://www.dcc.ac.uk/about/digital-curation/glossary.