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EAD Revision progress report

EAD Revision progress report. EAD Roundtable, SAA 2012, 2012-08-08. THE LONG AND WINDING ROAD. TIMELINE TO DATE. WITH A LITTLE HELP FROM MY FRIENDS. SUPPORT. Gladys Krieble Delmas Foundation National Endowment for the Humanities Nationaal Archief of the Netherlands

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EAD Revision progress report

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  1. EAD Revision progress report EAD Roundtable, SAA 2012, 2012-08-08

  2. THE LONG AND WINDING ROAD

  3. TIMELINE TO DATE

  4. WITH A LITTLE HELP FROM MY FRIENDS

  5. SUPPORT • Gladys KriebleDelmas Foundation • National Endowment for the Humanities • NationaalArchief of the Netherlands • Beinecke Rare Book and Manuscript Library, Yale University

  6. GET BACK

  7. POINTS OF EMPHASIS • Achieving greater conceptual and semantic consistency in the use of EAD. • Exploring mechanisms whereby EAD-encoded information might more seamlessly and effectively connect with, exchange, or incorporate data maintained according to other protocols.

  8. POINTS OF EMPHASIS • Improving the functionality of EAD for representing descriptive information created in international and particularly in multilingual environments. • Being mindful that a new version will affect current users.

  9. DRIVE MY CAR

  10. COMMUNITY COMMENTS • Non-Descriptive • Schema and documentation • General nature and purpose • Relationships to related resources and entities • EAD Header

  11. COMMUNITY COMMENTS • Descriptive • Hierarchy elements • Wrapper elements • Controlled terms • Digital Archival Objects • Date encoding • Languages and scripts • Other elements

  12. HELLO GOODBYE

  13. GENERAL PROCEDURES • Elimination of elements deprecated in EAD2002 • <add> • <admininfo> • <dentry> • <drow> • <organization> • <tspec> • @langmaterial, @legalstatus, @otherlegalstatus • Deprecation as a blanket rule for new removals

  14. 2011 QUALIFIERS Preliminary Provisional Contingent Possible Potential

  15. 2012 QUALIFIERS Likely Highly Likely But nothing is final.

  16. HELTER SKELTER

  17. DISENTANGLE DESCRIPTIVE ELEMENTS • Remove <arrangement> from <scopecontent> • Remove <acqinfo> from <custodhist> • Remove <legalstatus> from <accessrestrict> [and promote it to a sibling] • Remove <unitdate> from <unittitle> • Eliminate recursion • bioghist/bioghist • controlaccess/controlaccess • Provide alternative using <div>

  18. REDUCE SEMANTIC OVERLOAD • <note> • 8 distinct uses in EAD: • <notestmt> • <titlepage> or <div> [in <frontmatter> • <did> • <did> sibling • Within <did> siblings [as a block element] • Recursively within <note> • Within block elements like <p> [as mixed content] • <namegrp>

  19. UPDATE ACCESS TERMS • Split mixed content and block uses of access term elements into separate elements • Separate semantics of the following: • <p>Includes correspondence from <persname>John Lennon.</persname></p> • <controlaccess> <persname>Lennon, John.</persname></controlaccess>

  20. UPDATE ACCESS TERMS • Enable <part> • <controlaccess> <persname> <part>Lennon, John, </part> <part>1940-1980</part> </persname></controlaccess>

  21. ALIGN WITH XHTML • Minor tweaks to <table> • Minor tweaks to <list> • Remove <table>, <list>, and <chronlist> from within <p> • Limit <blockquote> to a block element, add <quote> for inline use.

  22. SIMPLIFY LINKS • Consolidate <extref>, <extptr>, <ref>, and <ptr> to just <ref> • Remove linking attributes from assorted elements, e.g. <title> • Deprecate extended links • <daogrp> • <linkgrp> • Remove XLINK namespace, but implement linking attributes isomorphic with XLINK

  23. SUPPORT MULTIPLE LANGUAGES • Add language code and script code attributes to each non-empty element

  24. REDUCE MIXED CONTENT • Reduce mixed content by more carefully considering what elements are appropriate within a given element • Examples: • Limit available children of <container> to <emph> and <ref> • Limit available children of <langmaterial> to <languagef>, <emph>, and <ref>

  25. COME TOGETHER

  26. RECONCILIATION WITH EAC-CPF • Replace <eadheader> with <control> • Keeping <filedesc> but replacing the rest • Add <relations> at all levels * • Improve data model for dates * • Improve <chronlist> * * Pending discussion

  27. ELEANOR RIGBY

  28. DEPRECATED ELEMENTS • <frontmatter> • <eadgrp>, <archdescgrp>, <dscgrp> • <descgrp> • <fileplan> • <abbr> + <expan> • <runner> • <daogrp> + <linkgrp> • <note>* • <dsc>

  29. SHE CAME IN THROUGH THE BATHROOM WINDOW

  30. ADDITIONS • Structured <physdesc> • <formsavailable> • container/@containerId • <didnote> • unittitle/@normal • <relations>

  31. STRUCTURED PHYSDESC • <physdesc> will remain • Unstructured and textual • Provides migration path • <physdescstruct> [provisional name] will be added • Fully encoded • Machine actionable

  32. STRUCTURED PHYSDESC • <physdescstuct> • @physdesctype • carrier • space [space occupied] • matttype [material type] • Specified Materials <specmat> • Physical Type <phystype> • Physical Details <physdetail>

  33. STRUCTURED PHYSDESC <physdesc type="carrier"> <specmat>Diaries</specmat> <num>52</num> <phystype>volumes</phystype> <dimensions>25 cm.</dimensions> </physdesc>

  34. STRUCTURED PHYSDESC <physdesc type="space"> <specmat>Collection</specmat> <num>39</num> <phystype>linear feet</phystype> </physdesc>

  35. STRUCTURED PHYSDESC <physdesc type="mattype"> <num>27</num> <phystype>architectural drawings</phystype> <physdetail>blueprints</physdetail> <dimensions> 28 x 36 inches</dimensions> </physdesc>

  36. FORMS AVAILABLE <did> <unittitle>Photograph</unittitle> <formsavailable> <container type=“Box”>1</container> <daohref=“url”/> </formsavailable> </did>

  37. CONTAINER ID <container type=“Box” containerid=“1234”> 1 </container> represents the same container as <container type=“Box” containerid=“1234”> 1 </container>

  38. CONTAINER ID <container type=“Box” containerid=“1234”> 1 </container> represents a different container from <container type=“Box” containerid=“5678”> 1 </container>

  39. DID NOTE • <didnote> • Contain PCDATA, mixed content elements (<emph>, <ref>, etc.) • Will not contain <p>, <table>, <list> <did> <didnote @label=“Note”>Mean Mr. Mustard sleeps in the park.</didnote> </did>

  40. ADDITIONS • Structured <physdesc> • <formsavailable> • container/@containerId • <didnote> • unittitle/@normal • <relations>

  41. LET IT BE

  42. REJECTED PROPOSALS • Eliminate <did> • Eliminate <head> • Eliminate <abstract> • Eliminate numbered components • Make <archdesc> a wrapper tag for components alone • Make @level required for all components

  43. I WANT TO HOLD YOUR HAND

  44. RELATED TOOLS • Migration stylesheet(s) • External validation tools to • Validate ISO code lists, etc. • Establishing subset profiles • Encoding manipulation tools • Stylesheet to change between numbered and unnumbered components

  45. MAXWELL’S SILVER HAMMER

  46. TESTING AND COMMENTS

  47. SDT GITHUB REPOSITORY http://github.com/SAA-SDT/EAD-Revision

  48. REVISED SCHEMA • Currently pre-Alpha • Hacked version of existing schema • Comprehensive re-write pending • http://github.com/SAA-SDT/EAD-Revision/blob/master/ead_revised.rng

  49. MIGRATION STYLESHEET • Draft conversion of existing EAD 2002 instances to new EAD • Intended to be developed alonside schema, but lagging behind • http://github.com/SAA-SDT/EAD-Revision/blob/master/ead2002toEADx.xsl

  50. ISSUE TRACKER • Three tags for issues • “Bugs” • (TS-EAD) “Feature Requests” • “Comments” • http://github.com/SAA-SDT/EAD-Revision/issues

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