This standard specifies the structure of a data registry. The structure is stated in the form of a conceptual data model. A data registry is a place to keep facts about characteristics of data that are necessary to clearly describe, inventory, analyze, and classify data. A data registry supports data sharing with cross-system and cross-organization descriptions of common units of data. A data registry assists users of shared data to have a common understanding of a unit of data?s meaning, representation, and identification. This standard will be of interest to information managers, data administrators, and others who are responsible for making data shareable. It will also be of particular interest to manufacturers of repository and CASE tool products.