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Leiden University. The university to discover. DMT Week 5. Adriaan van der Weel and Peter Verhaar. Leiden University. The university to discover. Last week’s lecture. Metadata and their role Some metadata standards: TEI header Dublin Core EAD Marc21 Mapping and exporting metadata
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Leiden University. The university to discover. DMT Week 5 • Adriaan van der Weel and Peter Verhaar
Leiden University. The university to discover. Last week’s lecture • Metadata and their role • Some metadata standards: • TEI header • Dublin Core • EAD • Marc21 • Mapping and exporting metadata • ‘Crosswalking’ (e.g. Shelfmark > Call number)
Leiden University. The university to discover. Last week’s seminar • The TEI header
Leiden University. The university to discover. Presentation 1 (Analogue) • Fixing the text: books / print • Ideal text • Form • Content • Entire text • Stability of form and content • Fixity • Inseparability of form and content!
Leiden University. The university to discover. Presentation 2 (Digital) • Digital text: • Separates form from content: • Fluidity of form and content • Lack of closure
Leiden University. The university to discover. Using computers to fix text • Wysiwyg in DTP, word processing • Homo typographicus • End product stable print • XML can also output for print (e.g., .pdf) • This involves an equation between typography and document structure • XML deals with more than document structure
Leiden University. The university to discover. Using the computer’s power • XML explicitly represents implicit information: • Structural functions of elements (cf. typography) • Relationships (OHCO) • Facts (e.g., dates, events, people) • Etcetera • All of this can be found and interpreted through a stylesheet
Leiden University. The university to discover. Presentation is a particular view of the data
Leiden University. The university to discover. Stylesheets • Stylesheets can be used to • Vary graphic appearance • Vary content • Vary order of content • Selectively show/hide content (e.g. in showing search results) • NB: • Also affects interpretative encoding • E.g., normalised dates
Leiden University. The university to discover. Technologies • Anastasia • Chaucer Project • Institute for New Testament Research, Münster • Leiden Armenian Lexical Textbase) • Book Trade Correspondence Project • eXtensible Style Language (XSL)
Leiden University. The university to discover. XSL • Makes use of XML’s OHCO: • Hierarchical tree • Document as a collection of nodes • Root, element, attribute, text nodes • Element relationships: • parent, child, sibling • XSLT document consists of • style templates to apply to nodes
Leiden University. The university to discover. The XSLT processor • XSLT processor traverses the XML document tree. It: • Matches style templates with nodes in the tree • Carries out the instruction contained in the template • Outputs the result • XSLT processors are found in browsers (e.g., Firefox, Internet Explorer, Safari) and editors (Oxygen)