The
DELTA System The DELTA format (DEscription Language for TAxonomy) is a method for encoding taxonomic descriptions for computer processing. It has been adopted by the International Taxonomic Databases Working Group (TDWG) as a standard for data exchange. DELTA-format data can be used to produce natural-language descriptions, interactive or conventional keys, cladistic or phenetic classifications, and information-retrieval systems. Species descriptions provided through the Cycad Pages have been generated using the DELTA system, and the multiple-entry identification tables provided also draw on the DELTA data files.
For more information on DELTA software and examples of datasets,
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