"Metadata is 'information about data'. This (in Princeton's context) includes both business definitions and descriptions as well as more technical information that includes where the data resides in the source system, what are the physical characteristics of the data (number, text, dollar amount etc.), transformations to the data, and lists of possible values.
Princeton is in the process of acquiring a comprehensive software tool that will enable data stewards to curate the data in their data collections and make them available to members of the university community"(C.E.D.A.R, Princeton University).
Helpful Metadata Links:
Center for Data, Analytics and Reporting: Office of Information Technology
Information Security Office: Office of Information Technology