Library Cataloging
An open source release of a tool for generating unique persistent digital object names and other identifiers has been made. The tool, called "noid" (nice opaque identifier), can be used as a major piece of an overall identifier strategy no matter which naming scheme you choose (e.g., ARK, DOI, Handle, LSID, PURL, or URN). The documentation, updated Nov 30, is technical on the whole, but it starts with a general overview and a brief tutorial section. This software release is available as open source.A paper describing the motivation for persistent identifiers and for ARKs (Archival Resource Key).
- Digital Identifiers
Abstract Modelling of Digital Identifiers by Nick Nicholas, Nigel Ward and Kerry Blinco appears in the latest Ariadne.Discussion of digital identifiers, and persistent identifiers in particular, has often been confused by differences in underlying assumptions...
- Poi
While scanning Guidelines for encoding identifiers in Dublin Core and IEEE LOM metadata by Andy Powell, Pete Johnston, Lorna Campbell and Phil Barker I noticed reference to POIs. That was one I've missed. A PURL-based Object Identifier (POI) is:The...
- Info Uniform Resource Identifier
The "info" URI Scheme for Information Assets with Identifiers in Public Namespaces is a new Internet-Draft.This document defines the "info" Uniform Resource Identifier (URI) scheme for information assets that have identifiers in public namespaces that...
- Openurl
Two releases from NISO Committee AX.Trial Use of OpenURL Version 1.0NISO Committee AX on OpenURL standardization is seeking participants for a trial of the emerging OpenURL 1.0 standard. The official trial period will begin May 1, 2003 and end November...
- Persistent Identifiers
My summary of the PURLs/Handles aspect of the creation of persistent identifiers:When deciding on what system to use to help manage collections pointed at with URIs, there are two major systems people use: Handles and PURLs. I have looked at several comparisons...
Library Cataloging
Persistent Digital Object Identifiers
An open source release of a tool for generating unique persistent digital object names and other identifiers has been made. The tool, called "noid" (nice opaque identifier), can be used as a major piece of an overall identifier strategy no matter which naming scheme you choose (e.g., ARK, DOI, Handle, LSID, PURL, or URN). The documentation, updated Nov 30, is technical on the whole, but it starts with a general overview and a brief tutorial section. This software release is available as open source.A paper describing the motivation for persistent identifiers and for ARKs (Archival Resource Key).
The "noid" (rhymes with void) tool creates minters, or identifier generators, and accepts commands that operate them. Once created, a minter can produce persistent, globally unique names for documents, databases, images, vocabulary terms, etc.Properly managed, minted identifiers can be used as long term durable information object references within naming schemes such as ARK, PURL, URN, DOI, and LSID. At the same time, alternative minters can be set up to produce short term names; for example, transaction identifiers and compact web server session keys. These are some of the ways in which the California Digital Library is using noids.A minter can bind arbitrary metadata to identifiers with individual stored values or rule-based values. Included are instructions for setting up a URL interface and a name resolver. Based on open source Berkeley DB databases, minters are extremely fast, scalable, reliable, and easy to create, and they have a small technical footprint.Naming and identifying are decisions of what constitutes a work, manifestation or expression and have implications in cataloging.
- Digital Identifiers
Abstract Modelling of Digital Identifiers by Nick Nicholas, Nigel Ward and Kerry Blinco appears in the latest Ariadne.Discussion of digital identifiers, and persistent identifiers in particular, has often been confused by differences in underlying assumptions...
- Poi
While scanning Guidelines for encoding identifiers in Dublin Core and IEEE LOM metadata by Andy Powell, Pete Johnston, Lorna Campbell and Phil Barker I noticed reference to POIs. That was one I've missed. A PURL-based Object Identifier (POI) is:The...
- Info Uniform Resource Identifier
The "info" URI Scheme for Information Assets with Identifiers in Public Namespaces is a new Internet-Draft.This document defines the "info" Uniform Resource Identifier (URI) scheme for information assets that have identifiers in public namespaces that...
- Openurl
Two releases from NISO Committee AX.Trial Use of OpenURL Version 1.0NISO Committee AX on OpenURL standardization is seeking participants for a trial of the emerging OpenURL 1.0 standard. The official trial period will begin May 1, 2003 and end November...
- Persistent Identifiers
My summary of the PURLs/Handles aspect of the creation of persistent identifiers:When deciding on what system to use to help manage collections pointed at with URIs, there are two major systems people use: Handles and PURLs. I have looked at several comparisons...