Research data management (RDM) refers to the organisation, storage and preservation of data created during a research project. It covers initial planning, day-to-day processes and long-term archiving and sharing.

Research data can take many different forms, but is essentially the evidence used to inform or support research conclusions.

Source: University of Sheffield. What is research data managent? The University Library. 
Online: https://www.sheffield.ac.uk/library/rdm/whatisrdm.