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  1. Ioannides, D.: XML schema languages : beyond DTD (2000) 0.02
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    Abstract
    The flexibility and extensibility of XML have largely contributed to its wide acceptance beyond the traditional realm of SGML. Yet, there is still one more obstacle to be overcome before XML is able to become the evangelized universal data/document format. The obstacle is posed by the limitations of the legacy standard for constraining the contents of an XML document. The traditionally used DTD (document type definition) format does not lend itself to be used in the wide variety of applications XML is capable of handling. The World Wide Web Consortium (W3C) has charged the XML schema working group with the task of developing a schema language to replace DTD. This XML schema language is evolving based on early drafts of XML schema languages. Each one of these early efforts adopted a slightly different approach, but all of them were moving in the same direction.
    Date
    28. 1.2006 19:01:22
  2. as: XML: Extensible Markup Language : I: Was ist XML? (2001) 0.01
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    Date
    30. 3.2003 11:06:22
  3. Fiander, D. J.: Applying XML to the bibliographic description (2001) 0.01
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    Abstract
    Over the past few years there has been a significant amount of work in the area of cataloging internet resources, primarily using new metadata standards like the Dublin Core, but there has been little work on applying new data description formats like SGML and XML to traditional cataloging practices. What little work has been done in the area of using SGML and XML for traditional bibliographic description has primarily been based on the concept of converting MARC tagging into XML tagging. I suggest that, rather than attempting to convert existing MARC tagging into a new syntax based on SGML or XML, a more fruitful possibility is to return to the cataloging standards and describe their inherent structure, learning from how MARC has been used successfully in modern OPAC while attempting to avoid MARC's rigid field-based restrictions.
  4. Schröder, A.: Web der Zukunft : RDF - Der erste Schritt zum semantischen Web 0.01
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    Abstract
    Seit dem 22. Februar 1999 ist das Resource Description Framework (RDF) als W3C-Empfehlung verfügbar. Doch was steckt hinter diesem Standard, der das Zeitalter des Semantischen Webs einläuten soll? Was RDF bedeutet, wozu man es einsetzt, welche Vorteile es gegenüber XML hat und wie man RDF anwendet, soll in diesem Artikel erläutert werden.
  5. Chang, M.: ¬An electronic finding aid using extensible markup language (XML) and encoded archival description (EAD) (2000) 0.01
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    Abstract
    Increasingly, XML applications are appearing on the World Wide Web, from e-commerce to information management. In the case of libraries and archives, XML enables more flexible information management and retrieval than using MARC or a relational database management system. Describes a project to explore the use of XML and the EAD, and the development of a prototype electronic finding aid. It focuses on the technical aspects, and reviews the options available and the choices made. This is done within the setting of a small- to medium-sized archive with minimal tools and resources.
  6. Patrick, D.A.: XML in der Praxis : Unternehmensübergreifende Vorteile durch Enterprise Content Management (1999) 0.01
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    Date
    30. 3.2003 10:50:22
  7. Trotman, A.: Searching structured documents (2004) 0.01
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    Date
    14. 8.2004 10:39:22
  8. Miller, D.R.: XML: Libraries' strategic opportunity (2001) 0.01
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    Abstract
    XML (eXtensible Markup Language) is fast gaining favor as the universal format for data and document exchange -- in effect becoming the lingua franca of the Information Age. Currently, "library information" is at a particular disadvantage on the rapidly evolving World Wide Web. Why? Despite libraries'explorations of web catalogs, scanning projects, digital data repositories, and creation of web pages galore, there remains a digital divide. The core of libraries' data troves are stored in proprietary formats of integrated library systems (ILS) and in the complex and arcane MARC formats -- both restricted chiefly to the province of technical services and systems librarians. Even they are hard-pressed to extract and integrate this wealth of data with resources from outside this rarefied environment. Segregation of library information underlies many difficulties: producing standard bibliographic citations from MARC data, automatically creating new materials lists (including new web resources) on a particular topic, exchanging data with our vendors, and even migrating from one ILS to another. Why do we continue to hobble our potential by embracing these self-imposed limitations? Most ILSs began in libraries, which soon recognized the pitfalls of do-it-yourself solutions. Thus, we wisely anticipated the necessity for standards. However, with the advent of the web, we soon found "our" collections and a flood of new resources appearing in digital format on opposite sides of the divide. If we do not act quickly to integrate library resources with mainstream web resources, we are in grave danger of becoming marginalized
  9. Christophides, V.; Plexousakis, D.; Scholl, M.; Tourtounis, S.: On labeling schemes for the Semantic Web (2003) 0.01
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    Abstract
    This paper focuses on the optimization of the navigation through voluminous subsumption hierarchies of topics employed by Portal Catalogs like Netscape Open Directory (ODP). We advocate for the use of labeling schemes for modeling these hierarchies in order to efficiently answer queries such as subsumption check, descendants, ancestors or nearest common ancestor, which usually require costly transitive closure computations. We first give a qualitative comparison of three main families of schemes, namely bit vector, prefix and interval based schemes. We then show that two labeling schemes are good candidates for an efficient implementation of label querying using standard relational DBMS, namely, the Dewey Prefix scheme [6] and an Interval scheme by Agrawal, Borgida and Jagadish [1]. We compare their storage and query evaluation performance for the 16 ODP hierarchies using the PostgreSQL engine.
  10. Warwick, C.; Pritchard, E.: 'Hyped' text markup language : XML and the future of web markup (2000) 0.01
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    Abstract
    There is a widespread perception that, in terms of web-technology, XML is going to be the 'next big thing'. Given the amount of comment that it has generated, it seems to be on its way to achieving that status. But how much of the praise should be taken at face value, and how much of the hype is credible? In the following article we examine some of the claims made about the importance of XML and consider how far the enthusiasm about it can be justified. Will XML cause a revolution that will change the way that everyone uses the Internet, whether as searchers or data creators? Or is it a tool for certain types of e-commerce and large-scale markup, which may not have a significant impact on the majority of web users?
  11. Mayo, D.; Bowers, K.: ¬The devil's shoehorn : a case study of EAD to ArchivesSpace migration at a large university (2017) 0.01
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    Abstract
    A band of archivists and IT professionals at Harvard took on a project to convert nearly two million descriptions of archival collection components from marked-up text into the ArchivesSpace archival metadata management system. Starting in the mid-1990s, Harvard was an alpha implementer of EAD, an SGML (later XML) text markup language for electronic inventories, indexes, and finding aids that archivists use to wend their way through the sometimes quirky filing systems that bureaucracies establish for their records or the utter chaos in which some individuals keep their personal archives. These pathfinder documents, designed to cope with messy reality, can themselves be difficult to classify. Portions of them are rigorously structured, while other parts are narrative. Early documents predate the establishment of the standard; many feature idiosyncratic encoding that had been through several machine conversions, while others were freshly encoded and fairly consistent. In this paper, we will cover the practical and technical challenges involved in preparing a large (900MiB) corpus of XML for ingest into an open-source archival information system (ArchivesSpace). This case study will give an overview of the project, discuss problem discovery and problem solving, and address the technical challenges, analysis, solutions, and decisions and provide information on the tools produced and lessons learned. The authors of this piece are Kate Bowers, Collections Services Archivist for Metadata, Systems, and Standards at the Harvard University Archive, and Dave Mayo, a Digital Library Software Engineer for Harvard's Library and Technology Services. Kate was heavily involved in both metadata analysis and later problem solving, while Dave was the sole full-time developer assigned to the migration project.
  12. Pepper, S.; Moore, G.; TopicMaps.Org Authoring Group: XML Topic Maps (XTM) 1.0 : TopicMaps.Org Specification (2001) 0.01
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    Abstract
    This specification provides a model and grammar for representing the structure of information resources used to define topics, and the associations (relationships) between topics. Names, resources, and relationships are said to be characteristics of abstract subjects, which are called topics. Topics have their characteristics within scopes: i.e. the limited contexts within which the names and resources are regarded as their name, resource, and relationship characteristics. One or more interrelated documents employing this grammar is called a topic map.TopicMaps.Org is an independent consortium of parties developing the applicability of the topic map paradigm [ISO13250] to the World Wide Web by leveraging the XML family of specifications. This specification describes version 1.0 of XML Topic Maps (XTM) 1.0 [XTM], an abstract model and XML grammar for interchanging Web-based topic maps, written by the members of the TopicMaps.Org Authoring Group. More information on XTM and TopicMaps.Org is available at http://www.topicmaps.org/about.html. All versions of the XTM Specification are permanently licensed to the public, as provided by the Charter of TopicMaps.Org.
  13. Miller, D.R.; Clarke, K.S.: Putting XML to work in the library : tools for improving access and management (2004) 0.01
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    Abstract
    The authors, hoping to stimulate interest in XML (Extensible Markup Language) and explain its value to the library community, offer a fine introduction to the topic. The opening chapter defines XML as "a system for electronically tagging or marking up documents in order to label, organize, and categorize their content" and then goes on to describe its origins and fundamental building blocks. Subsequent chapters address related technologies, schema development, XML-based tools, and current and future library uses. The authors argue persuasively for increased XML use, emphasizing its advantages over HTML in flexibility, interoperability, extensibility, and internationalization. Information is detailed, deftly written, and supported by numerous examples. Readers without a technological bent may find the text daunting, but their perseverance will be richly rewarded. Particularly recommended for webmasters and those working in library information systems and technical services.
  14. Salgáné, M.M.: Our electronic era and bibliographic informations computer-related bibliographic data formats, metadata formats and BDML (2005) 0.01
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    Abstract
    Using new communication technologies libraries must face continuously new questions, possibilities and expectations. This study discusses library-related aspects of our electronic era and how computer-related data formats affect bibliographic dataprocessing to give a summary of the most important results. First bibliographic formats for the exchange of bibliographic and related information in the machine-readable form between different types of computer systems were created more than 30 years ago. The evolution of information technologies leads to the improvement of computer systems. In addition to the development of computers and media types Internet has a great influence on data structure as well. Since the introduction of MARC bibliographic format, technology of data exchange between computers and between different computer systems has reached a very sophisticated stage and has contributed to the creation of new standards in this field. Today libraries work with this new infrastructure that induces many challenges. One of the most significant challenges is moving from a relatively homogenous bibliographic environment to a diverse one. Despite these challenges such changes are achievable and necessary to exploit possibilities of new metadata and technologies like the Internet and XML (Extensible Markup Language). XML is an open standard, a universal language for data on the Web. XML is nearly six-years-old standard designed for the description and computer-based management of (semi)-structured data and structured texts. XML gives developers the power to deliver structured data from a wide variety of applications and it is also an ideal format from server-to-server transfer of structured data. XML also isn't limited for Internet use and is an especially valuable tool in the field of library. In fact, XML's main strength - organizing information - makes it perfect for exchanging data between different systems. Tools that work with the XML can be used to process XML records without incurring additional costs associated with one's own software development. In addition, XML is also a suitable format for library web services. The Department of Computer-related Graphic Design and Library and Information Sciences of Debrecen University launched the BDML (Bibliographic Description Markup Language) development project in order to standardize bibliogrphic description with the help of XML.
  15. Vonhoegen, H.: Einstieg in XML (2002) 0.00
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    Footnote
    Rez. in: XML Magazin und Web Services 2003, H.1, S.14 (S. Meyen): "Seit dem 22. Februar 1999 ist das Resource Description Framework (RDF) als W3C-Empfehlung verfügbar. Doch was steckt hinter diesem Standard, der das Zeitalter des Semantischen Webs einläuten soll? Was RDF bedeutet, wozu man es einsetzt, welche Vorteile es gegenüber XML hat und wie man RDF anwendet, soll in diesem Artikel erläutert werden. Schlägt man das Buch auf und beginnt, im EinleitungsKapitel zu schmökern, fällt sogleich ins Auge, dass der Leser nicht mit Lektionen im Stile von "bei XML sind die spitzen Klammern ganz wichtig" belehrt wird, obgleich es sich um ein Buch für Anfänger handelt. Im Gegenteil: Es geht gleich zur Sache und eine gesunde Mischung an Vorkenntnissen wird vorausgesetzt. Wer sich heute für XML interessiert, der hat ja mit 99-prozentiger Wahrscheinlichkeit schon seine einschlägigen Erfahrungen mit HTML und dem Web gemacht und ist kein Newbie in dem Reich der spitzen Klammern und der (einigermaßen) wohlformatierten Dokumente. Und hier liegt eine deutliche Stärke des Werkes Helmut Vonhoegens, der seinen Einsteiger-Leser recht gut einzuschätzen weiß und ihn daher praxisnah und verständlich ans Thema heranführt. Das dritte Kapitel beschäftigt sich mit der Document Type Definition (DTD) und beschreibt deren Einsatzziele und Verwendungsweisen. Doch betont der Autor hier unablässig die Begrenztheit dieses Ansatzes, welche den Ruf nach einem neuen Konzept deutlich macht: XML Schema, welches er im folgenden Kapitel darstellt. Ein recht ausführliches Kapitel widmet sich dann dem relativ aktuellen XML Schema-Konzept und erläutert dessen Vorzüge gegenüber der DTD (Modellierung komplexer Datenstrukturen, Unterstützung zahlreicher Datentypen, Zeichenbegrenzungen u.v.m.). XML Schema legt, so erfährt der Leser, wie die alte DTD, das Vokabular und die zulässige Grammatik eines XML-Dokuments fest, ist aber seinerseits ebenfalls ein XML-Dokument und kann (bzw. sollte) wie jedes andere XML auf Wohlgeformtheit überprüft werden. Weitere Kapitel behandeln die Navigations-Standards XPath, XLink und XPointer, Transformationen mit XSLT und XSL und natürlich die XML-Programmierschnittstellen DOM und SAX. Dabei kommen verschiedene Implementierungen zum Einsatz und erfreulicherweise werden Microsoft-Ansätze auf der einen und Java/Apache-Projekte auf der anderen Seite in ungefähr vergleichbarem Umfang vorgestellt. Im letzten Kapitel schließlich behandelt Vonhoegen die obligatorischen Web Services ("Webdienste") als Anwendungsfall von XML und demonstriert ein kleines C#- und ASP-basiertes Beispiel (das Java-Äquivalent mit Apache Axis fehlt leider). "Einstieg in XML" präsentiert seinen Stoff in klar verständlicher Form und versteht es, seine Leser auf einem guten Niveau "abzuholen". Es bietet einen guten Überblick über die Grundlagen von XML und kann - zumindest derzeit noch - mit recht hoher Aktualität aufwarten."
  16. Learning XML : [creating self describing data] (2001) 0.00
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    Abstract
    Although Learning XML covers XML with a broad brush, it nevertheless presents the key elements of the technology with enough detail to familiarise the reader with the crucial markup language. This guide is brief enough to tackle in a weekend. Author Erik T Ray begins with an excellent summary of XML's history as an outgrowth of SGML and HTML. He outlines very clearly the elements of markup, demystifying concepts such as attributes, entities and namespaces with numerous clear examples. To illustrate a real-world XML application, he gives the reader a look at a document written in DocBook--a publicly available XML document type for publishing technical writings--and explains the sections of the document step by step. A simplified version of DocBook is used later in the book to illustrate transformation--a powerful benefit of XML. The all-important Document Type Definition (DTD) is covered in depth, but the still-unofficial alternative--XML Schema--is only briefly addressed. The author makes liberal use of graphical illustrations, tables and code to demonstrate concepts along the way, keeping the reader engaged and on track. Ray also gets into a deep discussion of programming XML utilities with Perl. Learning XML is a highly readable introduction to XML for readers with existing knowledge of markup and Web technologies, and it meets its goals very well--to deliver a broad perspective of XML and its potential.
  17. Anderson, R.; Birbeck, M.; Kay, M.; Livingstone, S.; Loesgen, B.; Martin, D.; Mohr, S.; Ozu, N.; Peat, B.; Pinnock, J.; Stark, P.; Williams, K.: XML professionell : behandelt W3C DOM, SAX, CSS, XSLT, DTDs, XML Schemas, XLink, XPointer, XPath, E-Commerce, BizTalk, B2B, SOAP, WAP, WML (2000) 0.00
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    Date
    22. 6.2005 15:12:11
  18. Miller, E.; Schloss. B.; Lassila, O.; Swick, R.R.: Resource Description Framework (RDF) : model and syntax (1997) 0.00
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    Abstract
    RDF - the Resource Description Framework - is a foundation for processing metadata; it provides interoperability between applications that exchange machine-understandable information on the Web. RDF emphasizes facilities to enable automated processing of Web resources. RDF metadata can be used in a variety of application areas; for example: in resource discovery to provide better search engine capabilities; in cataloging for describing the content and content relationships available at a particular Web site, page, or digital library; by intelligent software agents to facilitate knowledge sharing and exchange; in content rating; in describing collections of pages that represent a single logical "document"; for describing intellectual property rights of Web pages, and in many others. RDF with digital signatures will be key to building the "Web of Trust" for electronic commerce, collaboration, and other applications. Metadata is "data about data" or specifically in the context of RDF "data describing web resources." The distinction between "data" and "metadata" is not an absolute one; it is a distinction created primarily by a particular application. Many times the same resource will be interpreted in both ways simultaneously. RDF encourages this view by using XML as the encoding syntax for the metadata. The resources being described by RDF are, in general, anything that can be named via a URI. The broad goal of RDF is to define a mechanism for describing resources that makes no assumptions about a particular application domain, nor defines the semantics of any application domain. The definition of the mechanism should be domain neutral, yet the mechanism should be suitable for describing information about any domain. This document introduces a model for representing RDF metadata and one syntax for expressing and transporting this metadata in a manner that maximizes the interoperability of independently developed web servers and clients. The syntax described in this document is best considered as a "serialization syntax" for the underlying RDF representation model. The serialization syntax is XML, XML being the W3C's work-in-progress to define a richer Web syntax for a variety of applications. RDF and XML are complementary; there will be alternate ways to represent the same RDF data model, some more suitable for direct human authoring. Future work may lead to including such alternatives in this document.