On November 2000, the
APA's (American Publishers' Association) Open E-book
Publishing Standards Initiative has recommended to use DOI as
the primary identification system for e-books' metadata. The
MPEG (Motion Pictures Experts Group) is said to be considering
DOI seriously in its efforts to come up with numbering and
metadata standards for digital videos. A DOI can be expressed
as a URN (Universal Resource Name - IETF's syntax for generic
resources) and is compatible with OpenURL (a syntax for
embedding parameters such as identifiers and metadata in
links). Shortly, a "Namespace Dictionary" is to be published.
It will encompass 800 metadata elements and will tackle e-
books, journals, audio, and video. A working group was started
to develop a "services definition" interface (i.e., to allow
web-enabled systems, especially e-commerce and m-commerce
systems, to deploy DOI).
The DOI, in other words, is designed to be all-inclusive and
all-pervasive. Each DOI number is made of a prefix, specific
to a publisher, and a suffix, which could end up painlessly
assimilating the ISBN and ISSN (or any other numbering and
database) system.
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