Data Dictionary2.0Provides information about the data structures, data elements, and their valid ranges for data stored within NDARReturns all of the currently available data structuresQueries for data structures by optional type, source, or categoryReturns the available data structure types for use in queriesReturns the available data structure sources for use in queriesReturns the available data structure categories for use in queriesReturns information about an individual data structure, including the data elements it containsReturns information about an individual data structure, including the data elements it contains, as a CSV fileReturns the upload template for about an individual data structureReturns information about an individual data element and a list of data structures the element is withinReturn a change history about a data elementReturns change history from a data structure