olemus
ISO/IEC 2382:
andmebaas, mis sisaldab metaandmeid
= database that contains metadata
ISO 22951:
andmeelementide ja nende karakteristikute loend, mis rahuldab süsteemi teabe- ja talitlusvajadusi
= listing of data elements (and their characteristics) that meets the information and functional needs of a system
ISO/IEC 25024:
teabekogu andmete kohta, milles on näiteks nimi, kirjeldus, looja, omanik, päritolu, tõlked teistes keeltes, kasutusviis
= collection of information about data such as name, description, creator, owner, provenance, translation in different languages, and usage

ülevaateid
https://en.wikipedia.org/wiki/Data_dictionary
https://db.grussell.org/resources/pdf/Data%20Dictionary.pdf
https://www.usgs.gov/products/data-and-tools/data-management/data-dictionaries
http://users.informatik.uni-halle.de/~brass/dd03/c7_ddict.pdf

näiteid
https://data.nal.usda.gov/data-dictionary-examples