Thu, 21 Aug 2008 15:23:46 BST CiteULike: p0ol Bekaert http://www.citeulike.org/user/p0ol/author/Bekaert CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/p0ol/article/334843 <i>(27 Sep 2005)</i><br /><br />Various efforts aimed at representing digital assets have emerged from several communities over the last years, including the Metadata Encoding and Transmission Standard (METS), the IMS Content Packaging (IMS-CP) XML Binding and the XML Formatted Data Units (XFDU). The MPEG-21 Digital Item Declaration (MPEG-21 DID) is another approach that can be used for the representation of digital assets in XML. This paper will explore the potential of the MPEG-21 DID in a Digital Preservation context, by looking at the core building blocks of the OAIS Information Model and the way in which they map to the MPEG-21 DID abstract model and the MPEG-21 DIDL XML syntax. Representing Digital Assets for Long-Term Preservation using MPEG-21 DID Jeroen Bekaert Xiaoming Liu Herbert Van de Sompel (27 Sep 2005) 2005-09-29T14:07:24-00:00 2005 oais http://www.citeulike.org/user/p0ol/article/347875 <i>(28 Sep 2005)</i><br /><br />In recent years, a variety of digital repository and archival systems have been developed and adopted. All of these systems aim at hosting a variety of compound digital assets and at providing tools for storing, managing and accessing those assets. This paper will focus on the definition of common and standardized access interfaces that could be deployed across such diverse digital respository and archival systems. The proposed interfaces are based on the two formal specifications that have recently emerged from the Digital Library community: The Open Archive Initiative Protocol for Metadata Harvesting (OAI-PMH) and the NISO OpenURL Framework for Context-Sensitive Services (OpenURL Standard). As will be described, the former allows for the retrieval of batches of XML-based representations of digital assets, while the latter facilitates the retrieval of disseminations of a specific digital asset or of one or more of its constituents. The core properties of the proposed interfaces are explained in terms of the Reference Model for an Open Archival Information System (OAIS). Access Interfaces for Open Archival Information Systems based on the OAI-PMH and the OpenURL Framework for Context-Sensitive Services Jeroen Bekaert Herbert Van de Sompel (28 Sep 2005) 2005-10-11T14:11:16-00:00 2005 oais