Metadata

How to Choose a Digital Preservation Strategy: Evaluating a Preservation Planning Procedure — by Jan Hutař — last modified 2009-03-09 14:36

An increasing number of institutions throughout the world face legal obligations or business needs to collect and preserve digital objects over several decades. Today, a range of tools exist today to support the variety of preservation strategies such as migration or emulation. Yet, different preservation requirements across institutions and settings make the decision on which solution to implement very difficult.

Metadata for Digital Libraries: State of the Art and Future Directions — by Jan Hutař — last modified 2009-03-09 14:36

At a time when digitization technology has become well established in library operations, the need for a degree of standardization of metadata practices has become more acute, in order to ensure digital libraries the degree of interoperability long established in traditional libraries. The complex metadata requirements of digital objects, which include descriptive, administrative and structural metadata, have so far mitigated against the emergence of a single standard. However, a set of already existing standards, all based on XML architectures, can be combined to produce a coherent, integrated metadata strategy.

Preserving the Data Explosion: Using PDF — by Jan Hutař — last modified 2009-03-09 14:36

Betsy A. Fanning This report reviews the use of PDF, portable Document Format, more specifically, PDF/Archive as an archival file format to preserve an organization's knowledge. It should be noted that the use of PDF or PDF/Archive alone will not ensure the long-term preservation of electronic documents. When PDF/Archive is combined with a comprehensive records management program and formally established records policies and procedures, an organization can be sure that their electronic documents will be preserved.

A beta version of the Automatic Obsolescence Notification Service (AONS) — by Jan Hutař — last modified 2009-03-09 14:36

Informace o Automatic Obsolescence Notification Service (AONS)

Vydán PREMIS 2.0 - PREMIS Data Dictionary for Preservation Metadata — by Jan Hutař — last modified 2009-03-09 14:36

This document is a revision of Data Dictionary for Preservation Metadata: Final report of the PREMIS Working Group, issued in May 2005. The PREMIS Data Dictionary and its supporting documentation is a comprehensive, practical resource for implementing preservation metadata in digital archiving systems.

Developing Handle System® Web Services at Cornell University — by Jan Hutař — last modified 2009-03-09 14:36

odkaz na článek o implementaci Handle systému na Cornellově univerzitě + odkaz na web s příslušným SW

JPEG 2000 - a Practical Digital Preservation Standard? — by Jan Hutař — last modified 2009-03-09 14:36

DPC techonology watch report. Robert Buckley, Ph.D. JPEG 2000 is a wavelet-based standard for the compression of still digital images. It was developed by the ISO JPEG committee to improve on the performance of JPEG while adding significant new features and capabilities to enable new imaging applications. The JPEG 2000 compression method is part of a multi-part standard that defines a compression architecture, file format family, client-server protocol and other components for advanced applications.

PREMIS Tutorials — by Ladislav Cubr — last modified 2009-03-09 14:36

Výukový materiál pro "PREMIS Data Dictionary for Preservation Metadata".

Alternative File Formats for Storing Master Images of Digitisation Projects — by Jan Hutař — last modified 2009-03-09 14:36

This document is the end result of a study regarding alternative formats for storing master files of digitisation projects of the Koninklijke Bibliotheek (KB) in The Hague, the Netherlands. The study took place in the context of reviewing the KB's storage strategy. The magnitude of digitisation projects is increasing to such a degree – the estimate is a production of 40 million images (counting master versions only) in the next four years – that a revision of this strategy is deemed necessary. Currently, master files are stored in uncompressed TIFF file format, a format used world wide. 650 TB of storage space will be necessary to store 40 million files in this format. The objective of the study was to describe alternative file formats in order to reduce the necessary storage space. The desired image quality, long-term sustainability and functionality had to be taken into account during the study.

Recommendations for the creation of PDF files for long-term preservation and access — by Jan Hutař — last modified 2009-03-09 14:36

To safeguard the long-term storage and access of digital publications in the e-Depot the National Library of the Netherlands/Koninklijke Bibliotheek (KB) needs to know all ins and outs of the supplied files. Although every file format is accepted, the choice of file format and the chosen settings within a file format can affect the degree to which long term preservation and access can be guaranteed. As 88 per cent of the files in the e-Depot are PDF files, the KB has chosen to publish recommendations for PDF first.

Evaluating File Formats for Long-term Preservation — by Jan Hutař — last modified 2009-03-09 14:36

National and international publishers have been depositing digital publications at the National Library of the Netherlands (KB) since 2003. Until recently, most of these publications were deposited in the Portable Document Format. New projects, for example the web archiving project, force the KB to handle more heterogeneous material. Therefore, the KB has developed a quantifiable file format risk assessment method. This method can be used to define digital preservation strategies for specific file formats. The choice for a specific file format at creation time or later in the life cycle of a digital object influences the long-term access to the digital object. The evaluation method contains seven sustainability criteria for file formats that are weighed for importance. There seems to be consensus on the sustainability criteria. However, as the weighing of these criteria is connected to an institution’s policy, the KB wonders whether agreement on the relative importance of the criteria can be reached at all. With this paper, the KB hopes to inspire other cultural heritage institutions to define their own quantifiable file format evaluation method.

White paper projektu Planets: "Representation Information Registries" — by Jan Hutař — last modified 2009-03-09 14:36

This document is a report on the state-of-the-art in the field of Representation Information Registries (RIRs). RIRs are widely recognised as a critical component of digital preservation architecture in general, and a number of such registries are being developed as part of the Planets architecture in particular. This document discusses the development of the concept of representation information, and of the use of registries as a means of exposing that information for use by digital preservation services; it describes the RIR implementations which currently exist or are under development globally; it assesses planned and potential future developments in this area; it discusses the role which RIRs play within the Planets project, and concludes with recommendations for future areas of research within Planets and beyond.

Preservation Metadata — by Jan Hutař — last modified 2009-03-09 14:36

DPC technology watch report. Brian Lavoie and Richard Gartner. Keywords: metadata, digital preservation, schema, OAIS, metadata framework, PREMIS, data dictionary, METS, XML schema, archival information package.

Publikována zpráva "RLG Programs Descriptive Metadata Practices Survey" — by Jan Hutař — last modified 2009-03-09 14:36

vyhodnocení dotazníkové akce - téma Popisná metadata a jejich vytváření/využití