The Access to Biological Collections Data (ABCD) Schema is an evolving comprehensive standard for the access to and exchange of data about specimens and observations (a.k.a. primary biodiversity data). The ABCD Schema attempts to be comprehensive and highly structured, supporting data from a wide variety of databases. It is compatible with several existing data standards. Parallel structures exist so that either (or both) atomised data and free-text can be accommodated.
Sponsored by Biodiversity Information Standards TDWG - the Taxonomic Databases Working Group, the current specification was last modified in 2007.
A body of standards, including a glossary of terms (in other contexts these might be called properties, elements, fields, columns, attributes, or concepts) intended to facilitate the sharing of information about biological diversity by providing reference definitions, examples, and commentaries.
Sponsored by Biodiversity Information Standards (TWDG), the current standard was last modified in October 2009.
An extension of the ABCD standard for Geosciences data.
The GeoCASe Network provides access to a transnational network of palaeontological, mineralogical, and geological data; providers are required to use ABCDEFG, an extention of ABCD, in their configuration files.