A Digital Object Identifier - a digital identifier for any object of intellectual property. A DOI provides a means of persistently identifying a piece of intellectual property on a digital network and associating it with related current data. (www.doi.org)
Code that uniquely references this record, allowing reference to this record for this version of this database. Better than a primary key, which is automatically generated by a database and not globally unique. VegBank Accession codes are only generated by VegBank, and therefore data integrity can be guaranteed, unlike with a primary key (number).
The data management system within which an identifier is in scope and therefore unique. This is typically a URL (Uniform Resource Locator) that indicates a data management system. All identifiers that share a system must be unique. In other words, if the same identifier is used in two locations with identical systems, then by definition the objects at which they point are in fact the same object. Example(s): http://metacat.somewhere.org/svc/mc/
An additional, secondary identifier for this entity. The primary identifier belongs in the reference table, but additional identifiers that are used to label this entity, possibly from different data management systems, can be listed here. Example: VCR3465
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