Version 2.17 of the Berlin Model has been released in May 2006.
The new version has a NameFact entity for linking arbitrary
factual data to names comparable to the fact table for potential taxa. Additionally, there is a new attribute TreeIndex in PTaxon
representing a search index for hierarchical taxonomic
relations. With TreeIndex fast searching for entire taxonomic
sub-trees is now possible.
Handling Factual Information Linked to Taxonomic Concepts
G. Berendsohn, Markus Döring, Marc Geoffroy, Karl
Anton Güntsch, Andrea Hahn, Regine Jahn, Wolf-Henning
Kusber, Jinling Li, Dominik Röpert and Frank Specht
Department of Biodiversity
Informatics and Laboratories, Botanic Garden and Botanical
Museum Berlin-Dahlem, Freie Universität Berlin