1. CrossRef Deposit Schema 2.0 Bruce D. Rosenblum I NERA I NCORPORATED Innovative Software Solutions CrossRef Annual Meeting September 26, 2002

2. Presentation Overview  What's new in 2.0  Hierarchy overview  Specific Issues

3. What's New in 2.0  It’s more than journal articles  Books  Major reference works  Conference proceedings

4. DOI Assignment (version 0.3)  Journal  Article

5. DOI Assignment (version 2.0)  Journal  Article  Issue  Volume  Title  Book  Volume and/or Series  Content Item (e.g. chapters, sections, etc.)  Conference  Proceedings  Paper

6. Schema Design  Designed for linking  Based on:  Extensive review of actual citations  Publisher input  Only essential fields are required  Deposit Header  Container metadata (journal name, book title, etc.)  Publication date  DOI, URI

7. Schema vs. DTD  W3C XML Schema  Data validation  Parsers  Conformant  Xerces 2.0  Semi-conformant  XML Spy  Turbo XML (XML Authority) 2.2.1.100 or later

8. 0.3 vs. 2.0 Comparison  More Hierarchy  Less redundant data  Naming Conventions  Preserved 0.3 DTD names where appropriate  Used ONIX names for some new elements  See documentation for mapping tables

9. Header View

10. Journal Metadata

11. Journal Article

12. Book Metadata

13. Book Content Item

14. Conference View

15. Conference Event Metadata

16. Conference Proceedings Metadata

17. Conference Metadata 29th International Conference on Computer Graphics and Interactive Techniques Interactive Techniques SIGGRAPH 2002 2 2002 Proceedings of the twenty-ninth International Conference on Computer Graphics and Interactive Techniques - SIGGRAPH 2002 Computer Graphics Official Conference name including number and subject Annual conference slogan Popular or jargon name Proceedings cover page title Subject matter of printed proceedings

18. Data Submission Issues  Special Characters  Unicode  Combining characters  Non-Breaking space (&#x00A0)  Face Markup ,,,, etc.  Math Markup  Good faith representation with Unicode and face markup

19. General Element Comments 

20.   Public standard identifier  PII, SICI, DOI   Publisher internal identifier  Not based on public standard  item_number_type attribute  e.g. article_number in electronic-only publications

21.  Assignable to item or item container  Journal: issue or article  Book: book or content item  Proceedings: proceedings or paper  Required if underlined  Allows unique online and print dates

22.  Integer version number  Formatted as date/time  timestamp used if not in

23.  New element  Do not include titles, e.g. "Dr.", "Prof."  Ambiguous names: only  Leonardo da Vinci  Prince Charles  Organizations: Use, not

24.  Designed for multiple resolution  Infinitely recursive  For future use

25. Content-Specific Elements  Books   Conference Proceedings  Conference metadata  

26. Sample Book TOC

27.  Attributes  component_type: chapter, section, part, track, reference_entry, other  level_sequence_number  Indicates level of nesting  Reflects TOC layout  Flat schema model implies submission order if important

28.  Edition number of book  Update when entire book updated  Unresolved issue:  For online content with discrete updates, when do you update the edition number  Possible solutions:  Register new DOI if chapter is significantly changed  Keep original DOI and make old versions accessible

29. Conference Metadata Issues(1)

30. Conference Metadata Issues (2)

31.  CDATA format Jan. 15-17, 1997  Attribute format <conference_date start_day="15" start_month="01" start_year="1997" end_day="17” end_month="01" end_year="1997”/>  CDATA and attribute <conference_date start_day="15" start_month="01" start_year="1997" end_day="17” end_month="01" end_year="1997”> Jan. 15-17, 1997

32. Resources  CrossRef Schema Documentation 2.0.5.pdf  and sample XML files  http://mddb2.crossref.org/doc/TechDoc.html  tech-support@crossref.org

33. Questions? Bruce D. Rosenblum I NERA I NCORPORATED +1 (617) 969 - 3053 brosenblum@inera.com www.inera.com