Search (33 results, page 1 of 2)

0.019057466 = product of:
  0.09528732 = sum of:
    0.019256605 = weight(_text_:software in 5903) [ClassicSimilarity], result of:
      0.019256605 = score(doc=5903,freq=2.0), product of:
        0.12552431 = queryWeight, product of:
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.031640913 = queryNorm
        0.15340936 = fieldWeight in 5903, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.02734375 = fieldNorm(doc=5903)
    0.039094288 = weight(_text_:web in 5903) [ClassicSimilarity], result of:
      0.039094288 = score(doc=5903,freq=18.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.37859887 = fieldWeight in 5903, product of:
          4.2426405 = tf(freq=18.0), with freq of:
            18.0 = termFreq=18.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.02734375 = fieldNorm(doc=5903)
    0.036936436 = weight(_text_:site in 5903) [ClassicSimilarity], result of:
      0.036936436 = score(doc=5903,freq=2.0), product of:
        0.1738463 = queryWeight, product of:
          5.494352 = idf(docFreq=493, maxDocs=44218)
          0.031640913 = queryNorm
        0.21246605 = fieldWeight in 5903, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.494352 = idf(docFreq=493, maxDocs=44218)
          0.02734375 = fieldNorm(doc=5903)
  0.2 = coord(3/15)

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.

Theme

Semantic Web

0.010059266 = product of:
  0.050296333 = sum of:
    0.016505662 = weight(_text_:software in 729) [ClassicSimilarity], result of:
      0.016505662 = score(doc=729,freq=2.0), product of:
        0.12552431 = queryWeight, product of:
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.031640913 = queryNorm
        0.13149375 = fieldWeight in 729, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.0234375 = fieldNorm(doc=729)
    0.027360307 = weight(_text_:web in 729) [ClassicSimilarity], result of:
      0.027360307 = score(doc=729,freq=12.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.26496404 = fieldWeight in 729, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0234375 = fieldNorm(doc=729)
    0.00643036 = product of:
      0.01286072 = sum of:
        0.01286072 = weight(_text_:22 in 729) [ClassicSimilarity], result of:
          0.01286072 = score(doc=729,freq=2.0), product of:
            0.110801086 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.031640913 = queryNorm
            0.116070345 = fieldWeight in 729, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0234375 = fieldNorm(doc=729)
      0.5 = coord(1/2)
  0.2 = coord(3/15)

Abstract

In diesem Buch sollen die grundlegenden Techniken zur Erstellung, Anwendung und nicht zuletzt Darstellung von XML-Dokumenten erklärt und demonstriert werden. Die wichtigste und vornehmste Aufgabe dieses Buches ist es jedoch, die Grundlagen von XML, wie sie vom World Wide Web Consortium (W3C) festgelegt sind, darzustellen. Das W3C hat nicht nur die Entwicklung von XML initiiert und ist die zuständige Organisation für alle XML-Standards, es werden auch weiterhin XML-Spezifikationen vom W3C entwickelt. Auch wenn immer mehr Vorschläge für neue XML-basierte Techniken aus dem weiteren Umfeld der an XML Interessierten kommen, so spielt doch weiterhin das W3C die zentrale und wichtigste Rolle für die Entwicklung von XML. Der Schwerpunkt dieses Buches liegt darin, zu lernen, wie man XML als tragende Technologie in echten Alltags-Anwendungen verwendet. Wir wollen Ihnen gute Design-Techniken vorstellen und demonstrieren, wie man XML-fähige Anwendungen mit Applikationen für das WWW oder mit Datenbanksystemen verknüpft. Wir wollen die Grenzen und Möglichkeiten von XML ausloten und eine Vorausschau auf einige "nascent"-Technologien werfen. Egal ob Ihre Anforderungen sich mehr an dem Austausch von Daten orientieren oder bei der visuellen Gestaltung liegen, dieses Buch behandelt alle relevanten Techniken. jedes Kapitel enthält ein Anwendungsbeispiel. Da XML eine Plattform-neutrale Technologie ist, werden in den Beispielen eine breite Palette von Sprachen, Parsern und Servern behandelt. Jede der vorgestellten Techniken und Methoden ist auf allen Plattformen und Betriebssystemen relevant. Auf diese Weise erhalten Sie wichtige Einsichten durch diese Beispiele, auch wenn die konkrete Implementierung nicht auf dem von Ihnen bevorzugten System durchgeführt wurde.
Dieses Buch wendet sich an alle, die Anwendungen auf der Basis von XML entwickeln wollen. Designer von Websites können neue Techniken erlernen, wie sie ihre Sites auf ein neues technisches Niveau heben können. Entwickler komplexerer Software-Systeme und Programmierer können lernen, wie XML in ihr System passt und wie es helfen kann, Anwendungen zu integrieren. XML-Anwendungen sind von ihrer Natur her verteilt und im Allgemeinen Web-orientiert. Dieses Buch behandelt nicht verteilte Systeme oder die Entwicklung von Web-Anwendungen, sie brauchen also keine tieferen Kenntnisse auf diesen Gebieten. Ein allgemeines Verständnis für verteilte Architekturen und Funktionsweisen des Web wird vollauf genügen. Die Beispiele in diesem Buch verwenden eine Reihe von Programmiersprachen und Technologien. Ein wichtiger Bestandteil der Attraktivität von XML ist seine Plattformunabhängigkeit und Neutralität gegenüber Programmiersprachen. Sollten Sie schon Web-Anwendungen entwickelt haben, stehen die Chancen gut, dass Sie einige Beispiele in Ihrer bevorzugten Sprache finden werden. Lassen Sie sich nicht entmutigen, wenn Sie kein Beispiel speziell für Ihr System finden sollten. Tools für die Arbeit mit XML gibt es für Perl, C++, Java, JavaScript und jede COM-fähige Sprache. Der Internet Explorer (ab Version 5.0) hat bereits einige Möglichkeiten zur Verarbeitung von XML-Dokumenten eingebaut. Auch der Mozilla-Browser (der Open-Source-Nachfolger des Netscape Navigators) bekommt ähnliche Fähigkeiten. XML-Tools tauchen auch zunehmend in großen relationalen Datenbanksystemen auf, genau wie auf Web- und Applikations-Servern. Sollte Ihr System nicht in diesem Buch behandelt werden, lernen Sie die Grundlagen und machen Sie sich mit den vorgestellten Techniken aus den Beispielen vertraut.

Date

22. 6.2005 15:12:11

0.009165162 = product of:
  0.068738714 = sum of:
    0.051591087 = weight(_text_:web in 1457) [ClassicSimilarity], result of:
      0.051591087 = score(doc=1457,freq=6.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.49962097 = fieldWeight in 1457, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0625 = fieldNorm(doc=1457)
    0.017147627 = product of:
      0.034295253 = sum of:
        0.034295253 = weight(_text_:22 in 1457) [ClassicSimilarity], result of:
          0.034295253 = score(doc=1457,freq=2.0), product of:
            0.110801086 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.031640913 = queryNorm
            0.30952093 = fieldWeight in 1457, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=1457)
      0.5 = coord(1/2)
  0.13333334 = coord(2/15)

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.

Source

XML Magazin und Web Services. 2003, H.1, S.40-43

0.009133312 = product of:
  0.06849983 = sum of:
    0.036906876 = weight(_text_:evaluation in 3393) [ClassicSimilarity], result of:
      0.036906876 = score(doc=3393,freq=2.0), product of:
        0.13272417 = queryWeight, product of:
          4.1947007 = idf(docFreq=1811, maxDocs=44218)
          0.031640913 = queryNorm
        0.278072 = fieldWeight in 3393, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.1947007 = idf(docFreq=1811, maxDocs=44218)
          0.046875 = fieldNorm(doc=3393)
    0.031592958 = weight(_text_:web in 3393) [ClassicSimilarity], result of:
      0.031592958 = score(doc=3393,freq=4.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.3059541 = fieldWeight in 3393, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.046875 = fieldNorm(doc=3393)
  0.13333334 = coord(2/15)

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.

Theme

Semantic Web

0.0064927773 = product of:
  0.032463886 = sum of:
    0.003219906 = product of:
      0.006439812 = sum of:
        0.006439812 = weight(_text_:online in 3100) [ClassicSimilarity], result of:
          0.006439812 = score(doc=3100,freq=2.0), product of:
            0.096027054 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.031640913 = queryNorm
            0.067062475 = fieldWeight in 3100, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.015625 = fieldNorm(doc=3100)
      0.5 = coord(1/2)
    0.011003775 = weight(_text_:software in 3100) [ClassicSimilarity], result of:
      0.011003775 = score(doc=3100,freq=2.0), product of:
        0.12552431 = queryWeight, product of:
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.031640913 = queryNorm
        0.087662496 = fieldWeight in 3100, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.015625 = fieldNorm(doc=3100)
    0.018240204 = weight(_text_:web in 3100) [ClassicSimilarity], result of:
      0.018240204 = score(doc=3100,freq=12.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.17664269 = fieldWeight in 3100, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.015625 = fieldNorm(doc=3100)
  0.2 = coord(3/15)

Footnote

Rez. in: JASIST 55(2004) no.14, S.1304-1305 (Z. Holbrooks):"The eXtensible Markup Language (XML) and its family of enabling technologies (XPath, XPointer, XLink, XSLT, et al.) were the new "new thing" only a couple of years ago. Happily, XML is now a W3C standard, and its enabling technologies are rapidly proliferating and maturing. Together, they are changing the way data is handled an the Web, how legacy data is accessed and leveraged in corporate archives, and offering the Semantic Web community a powerful toolset. Library and information professionals need a basic understanding of what XML is, and what its impacts will be an the library community as content vendors and publishers convert to the new standards. Norman Desmarais aims to provide librarians with an overview of XML and some potential library applications. The ABCs of XML contains the useful basic information that most general XML works cover. It is addressed to librarians, as evidenced by the occasional reference to periodical vendors, MARC, and OPACs. However, librarians without SGML, HTML, database, or programming experience may find the work daunting. The snippets of code-most incomplete and unattended by screenshots to illustrate the result of the code's execution-obscure more often than they enlighten. A single code sample (p. 91, a book purchase order) is immediately recognizable and sensible. There are no figures, illustrations, or screenshots. Subsection headings are used conservatively. Readers are confronted with page after page of unbroken technical text, and occasionally oddly formatted text (in some of the code samples). The author concentrates an commercial products and projects. Library and agency initiatives-for example, the National Institutes of Health HL-7 and U.S. Department of Education's GEM project-are notable for their absence. The Library of Congress USMARC to SGML effort is discussed in chapter 1, which covers the relationship of XML to its parent SGML, the XML processor, and data type definitions, using MARC as its illustrative example. Chapter 3 addresses the stylesheet options for XML, including DSSSL, CSS, and XSL. The Document Style Semantics and Specification Language (DSSSL) was created for use with SGML, and pruned into DSSSL-Lite and further (DSSSL-online). Cascading Style Sheets (CSS) were created for use with HTML. Extensible Style Language (XSL) is a further revision (and extension) of DSSSL-o specifically for use with XML. Discussion of aural stylesheets and Synchronized Multimedia Integration Language (SMIL) round out the chapter.
Tennant's collection covers a variety of well- and lesser-known XML-based pilot and prototype projects undertaken by libraries around the world. Some of the projects included are: Stanford's XMLMARC conversion, Oregon State's use of XML in interlibrary loaning, e-books (California Digital Library) and electronic scholarly publishing (University of Michigan), the Washington Research Library Consortium's XML-based Web Services, and using TEI Lite to support indexing (Halton Hills Public Library). Of the 13 projects presented, nine are sited in academe, three are state library endeavors, and one is an American public library initiative. The projects are gathered into sections grouped by seven library applications: the use of XML in library catalog records, interlibrary loan, cataloging and indexing, collection building, databases, data migration, and systems interoperability. Each project is introduced with a few paragraphs of background information. The project reports-averaging about 13 pages each-include project goals and justification, project description, challenges and lessons learned (successes and failures), future plans, implications of the work, contact information for individual(s) responsible for the project, and relevant Web links and resources. The clear strengths of this collection are in the details and the consistency of presentation. The concise project write-ups flow well and encourage interested readers to follow-up via personal contacts and URLs. The sole weakness is the price. XML in Libraries will excite and inspire institutions and organizations with technically adept staff resources and visionary leaders. Erik Ray has written a how-to book. Unlike most, Learning XML is not aimed at the professional programming community. The intended audience is readers familiar with a structured markup (HTML, TEX, etc.) and Web concepts (hypertext links, data representation). In the first six chapters, Ray introduces XMUs main concepts and tools for writing, viewing, testing, and transforming XML (chapter 1), describes basic syntax (chapter 2), discusses linking with XLink and XPointer (chapter 3), introduces Cascading Style Sheets for use with XML (chapter 4), explains document type definitions (DTDs) and schemas (chapter 5), and covers XSLT stylesheets and XPath (chapter 6). Chapter 7 introduces Unicode, internationalization and language support, including CSS and XSLT encoding. Chapter 8 is an overview of writing software for processing XML, and includes the Perl code for an XML syntax checker. This work is written very accessibly for nonprogrammers. Writers, designers, and students just starting to acquire Web technology skills will find Ray's style approachable. Concepts are introduced in a logical flow, and explained clearly. Code samples (130+), illustrations and screen shots (50+), and numerous tables are distributed throughout the text. Ray uses a modified DocBook DTD and a checkbook example throughout, introducing concepts in early chapters and adding new concepts to them. Readers become familiar with the code and its evolution through repeated exposure. The code for converting the "barebones DocBook" DTD (10 pages of code) to HTML via XSLT stylesheet occupies 19 pages. Both code examples allow the learner to sec an accumulation of snippets incorporated into a sensible whole. While experienced programmers might not need this type of support, nonprogrammers certainly do. Using the checkbook example is an inspired choice: Most of us are familiar with personal checking, even if few of us world build an XML application for it. Learning XML is an excellent textbook. I've used it for several years as a recommended text for adult continuing education courses and workshops."

0.0064927773 = product of:
  0.032463886 = sum of:
    0.003219906 = product of:
      0.006439812 = sum of:
        0.006439812 = weight(_text_:online in 3101) [ClassicSimilarity], result of:
          0.006439812 = score(doc=3101,freq=2.0), product of:
            0.096027054 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.031640913 = queryNorm
            0.067062475 = fieldWeight in 3101, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.015625 = fieldNorm(doc=3101)
      0.5 = coord(1/2)
    0.011003775 = weight(_text_:software in 3101) [ClassicSimilarity], result of:
      0.011003775 = score(doc=3101,freq=2.0), product of:
        0.12552431 = queryWeight, product of:
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.031640913 = queryNorm
        0.087662496 = fieldWeight in 3101, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.015625 = fieldNorm(doc=3101)
    0.018240204 = weight(_text_:web in 3101) [ClassicSimilarity], result of:
      0.018240204 = score(doc=3101,freq=12.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.17664269 = fieldWeight in 3101, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.015625 = fieldNorm(doc=3101)
  0.2 = coord(3/15)

Footnote

Rez. in: JASIST 55(2004) no.14, S.1304-1305 (Z. Holbrooks):"The eXtensible Markup Language (XML) and its family of enabling technologies (XPath, XPointer, XLink, XSLT, et al.) were the new "new thing" only a couple of years ago. Happily, XML is now a W3C standard, and its enabling technologies are rapidly proliferating and maturing. Together, they are changing the way data is handled an the Web, how legacy data is accessed and leveraged in corporate archives, and offering the Semantic Web community a powerful toolset. Library and information professionals need a basic understanding of what XML is, and what its impacts will be an the library community as content vendors and publishers convert to the new standards. Norman Desmarais aims to provide librarians with an overview of XML and some potential library applications. The ABCs of XML contains the useful basic information that most general XML works cover. It is addressed to librarians, as evidenced by the occasional reference to periodical vendors, MARC, and OPACs. However, librarians without SGML, HTML, database, or programming experience may find the work daunting. The snippets of code-most incomplete and unattended by screenshots to illustrate the result of the code's execution-obscure more often than they enlighten. A single code sample (p. 91, a book purchase order) is immediately recognizable and sensible. There are no figures, illustrations, or screenshots. Subsection headings are used conservatively. Readers are confronted with page after page of unbroken technical text, and occasionally oddly formatted text (in some of the code samples). The author concentrates an commercial products and projects. Library and agency initiatives-for example, the National Institutes of Health HL-7 and U.S. Department of Education's GEM project-are notable for their absence. The Library of Congress USMARC to SGML effort is discussed in chapter 1, which covers the relationship of XML to its parent SGML, the XML processor, and data type definitions, using MARC as its illustrative example. Chapter 3 addresses the stylesheet options for XML, including DSSSL, CSS, and XSL. The Document Style Semantics and Specification Language (DSSSL) was created for use with SGML, and pruned into DSSSL-Lite and further (DSSSL-online). Cascading Style Sheets (CSS) were created for use with HTML. Extensible Style Language (XSL) is a further revision (and extension) of DSSSL-o specifically for use with XML. Discussion of aural stylesheets and Synchronized Multimedia Integration Language (SMIL) round out the chapter.
Tennant's collection covers a variety of well- and lesser-known XML-based pilot and prototype projects undertaken by libraries around the world. Some of the projects included are: Stanford's XMLMARC conversion, Oregon State's use of XML in interlibrary loaning, e-books (California Digital Library) and electronic scholarly publishing (University of Michigan), the Washington Research Library Consortium's XML-based Web Services, and using TEI Lite to support indexing (Halton Hills Public Library). Of the 13 projects presented, nine are sited in academe, three are state library endeavors, and one is an American public library initiative. The projects are gathered into sections grouped by seven library applications: the use of XML in library catalog records, interlibrary loan, cataloging and indexing, collection building, databases, data migration, and systems interoperability. Each project is introduced with a few paragraphs of background information. The project reports-averaging about 13 pages each-include project goals and justification, project description, challenges and lessons learned (successes and failures), future plans, implications of the work, contact information for individual(s) responsible for the project, and relevant Web links and resources. The clear strengths of this collection are in the details and the consistency of presentation. The concise project write-ups flow well and encourage interested readers to follow-up via personal contacts and URLs. The sole weakness is the price. XML in Libraries will excite and inspire institutions and organizations with technically adept staff resources and visionary leaders. Erik Ray has written a how-to book. Unlike most, Learning XML is not aimed at the professional programming community. The intended audience is readers familiar with a structured markup (HTML, TEX, etc.) and Web concepts (hypertext links, data representation). In the first six chapters, Ray introduces XMUs main concepts and tools for writing, viewing, testing, and transforming XML (chapter 1), describes basic syntax (chapter 2), discusses linking with XLink and XPointer (chapter 3), introduces Cascading Style Sheets for use with XML (chapter 4), explains document type definitions (DTDs) and schemas (chapter 5), and covers XSLT stylesheets and XPath (chapter 6). Chapter 7 introduces Unicode, internationalization and language support, including CSS and XSLT encoding. Chapter 8 is an overview of writing software for processing XML, and includes the Perl code for an XML syntax checker. This work is written very accessibly for nonprogrammers. Writers, designers, and students just starting to acquire Web technology skills will find Ray's style approachable. Concepts are introduced in a logical flow, and explained clearly. Code samples (130+), illustrations and screen shots (50+), and numerous tables are distributed throughout the text. Ray uses a modified DocBook DTD and a checkbook example throughout, introducing concepts in early chapters and adding new concepts to them. Readers become familiar with the code and its evolution through repeated exposure. The code for converting the "barebones DocBook" DTD (10 pages of code) to HTML via XSLT stylesheet occupies 19 pages. Both code examples allow the learner to sec an accumulation of snippets incorporated into a sensible whole. While experienced programmers might not need this type of support, nonprogrammers certainly do. Using the checkbook example is an inspired choice: Most of us are familiar with personal checking, even if few of us world build an XML application for it. Learning XML is an excellent textbook. I've used it for several years as a recommended text for adult continuing education courses and workshops."

0.0064927773 = product of:
  0.032463886 = sum of:
    0.003219906 = product of:
      0.006439812 = sum of:
        0.006439812 = weight(_text_:online in 3102) [ClassicSimilarity], result of:
          0.006439812 = score(doc=3102,freq=2.0), product of:
            0.096027054 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.031640913 = queryNorm
            0.067062475 = fieldWeight in 3102, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.015625 = fieldNorm(doc=3102)
      0.5 = coord(1/2)
    0.011003775 = weight(_text_:software in 3102) [ClassicSimilarity], result of:
      0.011003775 = score(doc=3102,freq=2.0), product of:
        0.12552431 = queryWeight, product of:
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.031640913 = queryNorm
        0.087662496 = fieldWeight in 3102, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.015625 = fieldNorm(doc=3102)
    0.018240204 = weight(_text_:web in 3102) [ClassicSimilarity], result of:
      0.018240204 = score(doc=3102,freq=12.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.17664269 = fieldWeight in 3102, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.015625 = fieldNorm(doc=3102)
  0.2 = coord(3/15)

Footnote

Rez. in: JASIST 55(2004) no.14, S.1304-1305 (Z. Holbrooks):"The eXtensible Markup Language (XML) and its family of enabling technologies (XPath, XPointer, XLink, XSLT, et al.) were the new "new thing" only a couple of years ago. Happily, XML is now a W3C standard, and its enabling technologies are rapidly proliferating and maturing. Together, they are changing the way data is handled an the Web, how legacy data is accessed and leveraged in corporate archives, and offering the Semantic Web community a powerful toolset. Library and information professionals need a basic understanding of what XML is, and what its impacts will be an the library community as content vendors and publishers convert to the new standards. Norman Desmarais aims to provide librarians with an overview of XML and some potential library applications. The ABCs of XML contains the useful basic information that most general XML works cover. It is addressed to librarians, as evidenced by the occasional reference to periodical vendors, MARC, and OPACs. However, librarians without SGML, HTML, database, or programming experience may find the work daunting. The snippets of code-most incomplete and unattended by screenshots to illustrate the result of the code's execution-obscure more often than they enlighten. A single code sample (p. 91, a book purchase order) is immediately recognizable and sensible. There are no figures, illustrations, or screenshots. Subsection headings are used conservatively. Readers are confronted with page after page of unbroken technical text, and occasionally oddly formatted text (in some of the code samples). The author concentrates an commercial products and projects. Library and agency initiatives-for example, the National Institutes of Health HL-7 and U.S. Department of Education's GEM project-are notable for their absence. The Library of Congress USMARC to SGML effort is discussed in chapter 1, which covers the relationship of XML to its parent SGML, the XML processor, and data type definitions, using MARC as its illustrative example. Chapter 3 addresses the stylesheet options for XML, including DSSSL, CSS, and XSL. The Document Style Semantics and Specification Language (DSSSL) was created for use with SGML, and pruned into DSSSL-Lite and further (DSSSL-online). Cascading Style Sheets (CSS) were created for use with HTML. Extensible Style Language (XSL) is a further revision (and extension) of DSSSL-o specifically for use with XML. Discussion of aural stylesheets and Synchronized Multimedia Integration Language (SMIL) round out the chapter.
Tennant's collection covers a variety of well- and lesser-known XML-based pilot and prototype projects undertaken by libraries around the world. Some of the projects included are: Stanford's XMLMARC conversion, Oregon State's use of XML in interlibrary loaning, e-books (California Digital Library) and electronic scholarly publishing (University of Michigan), the Washington Research Library Consortium's XML-based Web Services, and using TEI Lite to support indexing (Halton Hills Public Library). Of the 13 projects presented, nine are sited in academe, three are state library endeavors, and one is an American public library initiative. The projects are gathered into sections grouped by seven library applications: the use of XML in library catalog records, interlibrary loan, cataloging and indexing, collection building, databases, data migration, and systems interoperability. Each project is introduced with a few paragraphs of background information. The project reports-averaging about 13 pages each-include project goals and justification, project description, challenges and lessons learned (successes and failures), future plans, implications of the work, contact information for individual(s) responsible for the project, and relevant Web links and resources. The clear strengths of this collection are in the details and the consistency of presentation. The concise project write-ups flow well and encourage interested readers to follow-up via personal contacts and URLs. The sole weakness is the price. XML in Libraries will excite and inspire institutions and organizations with technically adept staff resources and visionary leaders. Erik Ray has written a how-to book. Unlike most, Learning XML is not aimed at the professional programming community. The intended audience is readers familiar with a structured markup (HTML, TEX, etc.) and Web concepts (hypertext links, data representation). In the first six chapters, Ray introduces XMUs main concepts and tools for writing, viewing, testing, and transforming XML (chapter 1), describes basic syntax (chapter 2), discusses linking with XLink and XPointer (chapter 3), introduces Cascading Style Sheets for use with XML (chapter 4), explains document type definitions (DTDs) and schemas (chapter 5), and covers XSLT stylesheets and XPath (chapter 6). Chapter 7 introduces Unicode, internationalization and language support, including CSS and XSLT encoding. Chapter 8 is an overview of writing software for processing XML, and includes the Perl code for an XML syntax checker. This work is written very accessibly for nonprogrammers. Writers, designers, and students just starting to acquire Web technology skills will find Ray's style approachable. Concepts are introduced in a logical flow, and explained clearly. Code samples (130+), illustrations and screen shots (50+), and numerous tables are distributed throughout the text. Ray uses a modified DocBook DTD and a checkbook example throughout, introducing concepts in early chapters and adding new concepts to them. Readers become familiar with the code and its evolution through repeated exposure. The code for converting the "barebones DocBook" DTD (10 pages of code) to HTML via XSLT stylesheet occupies 19 pages. Both code examples allow the learner to sec an accumulation of snippets incorporated into a sensible whole. While experienced programmers might not need this type of support, nonprogrammers certainly do. Using the checkbook example is an inspired choice: Most of us are familiar with personal checking, even if few of us world build an XML application for it. Learning XML is an excellent textbook. I've used it for several years as a recommended text for adult continuing education courses and workshops."

0.005742603 = product of:
  0.04306952 = sum of:
    0.02200755 = weight(_text_:software in 3005) [ClassicSimilarity], result of:
      0.02200755 = score(doc=3005,freq=2.0), product of:
        0.12552431 = queryWeight, product of:
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.031640913 = queryNorm
        0.17532499 = fieldWeight in 3005, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.03125 = fieldNorm(doc=3005)
    0.021061972 = weight(_text_:web in 3005) [ClassicSimilarity], result of:
      0.021061972 = score(doc=3005,freq=4.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.2039694 = fieldWeight in 3005, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.03125 = fieldNorm(doc=3005)
  0.13333334 = coord(2/15)

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.

0.0057410696 = product of:
  0.08611604 = sum of:
    0.08611604 = weight(_text_:evaluation in 4633) [ClassicSimilarity], result of:
      0.08611604 = score(doc=4633,freq=2.0), product of:
        0.13272417 = queryWeight, product of:
          4.1947007 = idf(docFreq=1811, maxDocs=44218)
          0.031640913 = queryNorm
        0.64883465 = fieldWeight in 4633, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.1947007 = idf(docFreq=1811, maxDocs=44218)
          0.109375 = fieldNorm(doc=4633)
  0.06666667 = coord(1/15)

0.005372559 = product of:
  0.040294193 = sum of:
    0.008049765 = product of:
      0.01609953 = sum of:
        0.01609953 = weight(_text_:online in 6985) [ClassicSimilarity], result of:
          0.01609953 = score(doc=6985,freq=2.0), product of:
            0.096027054 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.031640913 = queryNorm
            0.16765618 = fieldWeight in 6985, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0390625 = fieldNorm(doc=6985)
      0.5 = coord(1/2)
    0.03224443 = weight(_text_:web in 6985) [ClassicSimilarity], result of:
      0.03224443 = score(doc=6985,freq=6.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.3122631 = fieldWeight in 6985, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0390625 = fieldNorm(doc=6985)
  0.13333334 = coord(2/15)

Abstract

Mit wohl einem der faszinierendsten und innovativsten Themen der Gegenwart und allernächsten Zukunft des Internet befasst sich dieses Buch: XML. Nie als HTML-Ersatz gedacht, erweitert es das Spektrum möglicher Anwendungen im Internet einerseits und schließt andererseits klaffende Lücken und technische Unzulänglichkeiten. Keine Frage: Wer sich als Web-Administrator, Autor eines privaten oder geschäftlichen Internet-Auftritts, Intranet-Verantwortlicher oder -Anwender mit HTML auseinandergesetzt hat, wird in Zukunft auch um XML nicht umhinkommen. Auch außerhalb der Online-Szene hat sich XML bereits heute als richtungsweisender Standard des Dokumentenmanagements etabliert. Dieses Buch bietet das komplette XML- und XSL-Wissen auf praxisnahem und hohem Niveau. Neben einer fundierten Einführung finden Sie das komplette Know-how, stets belegt und beschrieben durch Praxisanwendungen, das Sie für die Arbeit mit XML benötigen. Mit viel Engagement und Zeitaufwand haben uns Firmen, Freunde, Mitarbeiter und der Markt & Technik-Verlag unterstützt. Unser Dank gilt daher all jenen, die ihren Anteil am Gelingen dieses Buches hatten und noch haben werden. In der zweiten völlig aktualisierten und stark erweiterten Ausgabe dieses Buches konnten wir zahlreiche positive Rückmeldungen von Leserinnen und Lesern berücksichtigen. So greift dieses Buch jetzt auch neueste Entwicklungen aus der XML-Entwicklung auf. Dazu gehören beispielsweise SMIL und WML (WAP) oder die erst im Dezember 1999 veröffentlichte X-HTML Empfehlung.

RSWK

World wide web / Seite / Gestaltung (213)

Subject

World wide web / Seite / Gestaltung (213)

0.0049144607 = product of:
  0.07371691 = sum of:
    0.07371691 = weight(_text_:web in 3754) [ClassicSimilarity], result of:
      0.07371691 = score(doc=3754,freq=4.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.71389294 = fieldWeight in 3754, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.109375 = fieldNorm(doc=3754)
  0.06666667 = coord(1/15)

Theme

Semantic Web

0.0046933754 = product of:
  0.035200313 = sum of:
    0.022339594 = weight(_text_:web in 720) [ClassicSimilarity], result of:
      0.022339594 = score(doc=720,freq=2.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.21634221 = fieldWeight in 720, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.046875 = fieldNorm(doc=720)
    0.01286072 = product of:
      0.02572144 = sum of:
        0.02572144 = weight(_text_:22 in 720) [ClassicSimilarity], result of:
          0.02572144 = score(doc=720,freq=2.0), product of:
            0.110801086 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.031640913 = queryNorm
            0.23214069 = fieldWeight in 720, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=720)
      0.5 = coord(1/2)
  0.13333334 = coord(2/15)

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

0.0042992574 = product of:
  0.06448886 = sum of:
    0.06448886 = weight(_text_:web in 1725) [ClassicSimilarity], result of:
      0.06448886 = score(doc=1725,freq=6.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.6245262 = fieldWeight in 1725, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.078125 = fieldNorm(doc=1725)
  0.06666667 = coord(1/15)

Abstract

Neue Technologien und Standards sollen die Zukunft des Web prägen. Internet Professionell erklärt, was es mit XML, XSLT, XHTML, XPath und XLink auf sich hat

0.0040097586 = product of:
  0.030073186 = sum of:
    0.0225711 = weight(_text_:web in 4002) [ClassicSimilarity], result of:
      0.0225711 = score(doc=4002,freq=6.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.21858418 = fieldWeight in 4002, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.02734375 = fieldNorm(doc=4002)
    0.007502087 = product of:
      0.015004174 = sum of:
        0.015004174 = weight(_text_:22 in 4002) [ClassicSimilarity], result of:
          0.015004174 = score(doc=4002,freq=2.0), product of:
            0.110801086 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.031640913 = queryNorm
            0.1354154 = fieldWeight in 4002, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02734375 = fieldNorm(doc=4002)
      0.5 = coord(1/2)
  0.13333334 = coord(2/15)

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."

0.0034902815 = product of:
  0.02617711 = sum of:
    0.0068304525 = product of:
      0.013660905 = sum of:
        0.013660905 = weight(_text_:online in 4804) [ClassicSimilarity], result of:
          0.013660905 = score(doc=4804,freq=4.0), product of:
            0.096027054 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.031640913 = queryNorm
            0.142261 = fieldWeight in 4804, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0234375 = fieldNorm(doc=4804)
      0.5 = coord(1/2)
    0.019346658 = weight(_text_:web in 4804) [ClassicSimilarity], result of:
      0.019346658 = score(doc=4804,freq=6.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.18735787 = fieldWeight in 4804, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0234375 = fieldNorm(doc=4804)
  0.13333334 = coord(2/15)

Content

"Die Extensible Markup Language (XML) ist eine Metaauszeichnungssprache, die 1998 vom World Wide Web Consortium (W3C), einer Organisation, die sich mit der Erstellung von Web Standards und neuen Technologien für das Internet beschäftigt, als neue Empfehlung für Web-Anwendungen festgesetzt wurde. Seitdem ist viel über XML und die sich durch diese Sprache ergebenden neuen Möglichkeiten des Datenaustausches über das Internet publiziert worden. In XML-Dokumenten werden die hierarchische Struktur und der Inhalt der Dokumente festgelegt, aber keinerlei Angaben zum Layout gemacht. Dieses wird in so genannten Stylesheets definiert. Mit Hilfe mehrerer Stylesheets, die sich alle auf ein XML-Dokument beziehen, ist es möglich, aus einem Datenbestand verschiedene Ausgabeprodukte, z.B. eine Online-Version und eine druckbare Ausgabe eines Dokuments, zu erzeugen. Diese Möglichkeit der Herstellung verschiedener medialer Varianten eines Produkts ist auch für die Herstellung von Informationsmitteln interessant. Im Bereich der Produktion von Informationsmitteln, vor allem von Lexika und Enzyklopädien, ist in den letzten Jahren zu beobachten gewesen, dass neben der traditionellen, gedruckten Ausgabe des Nachschlagewerks zunehmend auch elektronische Varianten, die durch multimediale Elemente angereichert sind, angeboten werden. Diese elektronischen Nachschlagewerke werden sowohl offline, d.h. auf CD-ROM bzw. DVD, als auch online im Internet veröffentlicht. Im Gegensatz zu den gedruckten Versionen werden die neuen Produkte fast jährlich aktualisiert. Diese neue Situation erforderte Veränderungen im Herstellungsprozess. Ein Verfahren, das die Erzeugung verschiedener medialer Varianten eines Produkts möglichst einfach und problemlos ermöglicht, wurde benötigt. XML und ihr Vorgänger, die Standard Generalized Markup Language (SGML), schienen die perfekte Lösung für dieses Problem zu sein. Die Erwartungen an den Nutzen, den SGML und XML bringen könnten, waren hoch: "Allein dieses Spitzklammerformat, eingespeist in einen Datenpool, soll auf Knopfdruck die Generierung der verschiedensten Medienprodukte ermöglichen". Ziel dieser Arbeit ist es, darzustellen, wie der neue Standard XML bei der Publikation von Informationsmitteln eingesetzt werden kann, um aus einem einmal erfassten Datenbestand mit möglichst geringem Aufwand mehrere Ausgabeprodukte zu generieren. Es wird darauf eingegangen, welche Ausgabeformen sich in diesem Bereich für XML-Dokumente anbieten und mit welchen Verfahren und Hilfsmitteln die jeweiligen Ausgabeformate erstellt werden können. In diesem Zusammenhang sollen auch die Aspekte behandelt werden, die sich bei der Umwandlung von XML-Dokumenten in andere For mate unter Umständen als problematisch erweisen könnten.

0.003040034 = product of:
  0.045600507 = sum of:
    0.045600507 = weight(_text_:web in 1467) [ClassicSimilarity], result of:
      0.045600507 = score(doc=1467,freq=12.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.4416067 = fieldWeight in 1467, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1467)
  0.06666667 = coord(1/15)

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

0.0029786127 = product of:
  0.044679187 = sum of:
    0.044679187 = weight(_text_:web in 3918) [ClassicSimilarity], result of:
      0.044679187 = score(doc=3918,freq=2.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.43268442 = fieldWeight in 3918, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.09375 = fieldNorm(doc=3918)
  0.06666667 = coord(1/15)

0.0025795544 = product of:
  0.038693316 = sum of:
    0.038693316 = weight(_text_:web in 718) [ClassicSimilarity], result of:
      0.038693316 = score(doc=718,freq=6.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.37471575 = fieldWeight in 718, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.046875 = fieldNorm(doc=718)
  0.06666667 = coord(1/15)

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?

0.002220127 = product of:
  0.033301905 = sum of:
    0.033301905 = weight(_text_:web in 1465) [ClassicSimilarity], result of:
      0.033301905 = score(doc=1465,freq=10.0), product of:
        0.10326045 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.031640913 = queryNorm
        0.32250395 = fieldWeight in 1465, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.03125 = fieldNorm(doc=1465)
  0.06666667 = coord(1/15)

Abstract

XML verändert das Web wie nichts zuvor. Das Buch erklärt Ihnen sowohl die Idee von XML als auch deren Anwendungsmöglichkeiten. Neben der vollständigen Spezifikation enthält es vor allem auch praktische Tipps für den Einsatz von XML im WWW. Jeder Web-Publisher, der die Beschränkungen von HTML ablegen möchte, findet in diesem Buch eine unentbehrliche Grundlage und Referenz. Erläuterungen und Tipps zu wichtigen Aspekten wie XSL, RDF und Linking Runden

Content

XML in der Praxis war das erste deutsche Buch zur damals noch neuen Metamarkierungssprache XML. Mit der zweiten, überarbeiteten Auflage knüpfen die Autoren Behme und Mintert nahtlos an die Professionalität der ersten Ausgabe an. Auf dem neusten Stand der vom W3C verabschiedeten Spezifikationen rund um XML und mit den schon aus der ersten Auflage gewohnten einführenden und dennoch tief gehenden Erklärungen und Beispielen ist XML in der Praxis eine größtenteils neu überarbeitete Wunschkiste für XML-Einsteiger und Profis, die den Namen "2., erweiterte Auflage" mehr als verdient. Inhaltlich wurden die schon vorhandenen Kapitel aktualisiert, der Einstieg zum Thema Dokumente, XML im Web und ein XML Quickstart und die erste DTD -- noch immer brillant. Neu sind Kapitel zu Namensräumen, XPath, ein erweiterter Abschnitt zum XML-Linking, ein Überblick über Stylesheet-Sprachen und XSL-Transformation. Beispiele en masse -- detailliert und ausführlich. Spannend ist ein Kapitel über XML und Apache samt Cocconing und auch XHTML und WML werden hinreichend angesprochen. Außerdem enthält das Buch wie schon zuvor die deutsche Übersetzung der XML 1.0 Spezifikation. Wer dann noch nicht genug hat und in die in die tiefsten Tiefen der Metamarkierungssprache abtauchen will, dem sein Professional XML empfohlen -- zuvor ist das XML in der Praxis -Buch jedoch verpflichtende Einstiegslektüre. XML ist der Nachbrenner, den das Web für seinen weiteren Flug in die Zukunft braucht und Behme und Mintert eröffnen den Blick in die Maschinerie, um die Technik verwenden zu können. Buch lesen und abheben -- Mark-Up war noch nie so grenzenlos!

0.002200755 = product of:
  0.033011325 = sum of:
    0.033011325 = weight(_text_:software in 3849) [ClassicSimilarity], result of:
      0.033011325 = score(doc=3849,freq=2.0), product of:
        0.12552431 = queryWeight, product of:
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.031640913 = queryNorm
        0.2629875 = fieldWeight in 3849, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.9671519 = idf(docFreq=2274, maxDocs=44218)
          0.046875 = fieldNorm(doc=3849)
  0.06666667 = coord(1/15)

Abstract

Current global communication of people and software applications over the Internet is facilitated by the use of markup languages. This entry introduces the principles and different types of markup, and the history behind the current markup languages. The basis of the modern markup languages is the Standard Generalized Markup Language (SGML) or its restricted form Extensible Markup Language (XML). This entry describes the markup techniques used in SGML and XML, gives examples of their use, and briefly describes some representative SGML and XML applications from different domains. An important factor in the success of XML has been the possibility to reuse markup vocabularies and combine vocabularies originating from different sources. This entry describes the concepts and methods facilitating the reuse of names from earlier defined vocabularies.