The Researcher is an analyst approved to query de-identified datasets for cohort studies. They never touch raw PHI in the warehouse path.
What success looks like
Governed SQL against OMOP tables, reproducible cohort definitions, and an audit entry for every query — so compliance can reconstruct who asked what.
OMOP cohort queries on de-identified data.
Safe Harbor transforms before data enters the warehouse.
Researchers specify inclusion criteria against OMOP tables via the Query API.
Every execution is logged; exports require approved study scope.