Research data is the recorded information necessary to support or validate a research project’s observations, findings, or outputs.
Research data depending on discipline can be textual, numerical, qualitative, quantitative, final, preliminary, physical, digital, or print.
Sources: Research Data Oxford
Open Data is freely available on the internet, permitting any user to download, copy, analyze, re-process, pass to software, or use for any other purpose without financial, legal, or technical barriers.
Source: SPARC
NO! All research data can not be open reasons legal, commercial, etc. However, all research data should manage!