Differentation between primary info and secondary info?

Differentation between primary info and secondary info?
Primary information is information collected through research that does not already exist (surveys, questionnaires, interviews, observations, etc). Primary information is the product of primary research.

Secondary information is information previously gathered and presented in finished terms (not raw data). Secondary information can come from books, scientific journals, dissertations, case studies, etc. It is the product of secondary research.