Definitions for "Primary Data"
data obtained directly using methods such as a survey or an experiment.
Data from primary research - that is, research on specific individuals, from a survey or other database. Much the same as raw data. Contrasts with secondary data.
primary data refers to data in its virgin state; as introduced to the system from an external source (such as a person or department). "Source" defines who is responsible for entering the data to a system, and who has ultimate authority for the definition of the data element. (See Generated Data).
Information obtained from medical records or other primary sources of clinical findings such as diagnostic tests and physical examination results.