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Study report on SMM process

ISO/IEC JTC1/SC32 WG2 Interim Meeting Seoul, Korea. Study report on SMM process. 2007. 12. 6 Tae-Hoon Lim and Tae-Sul Seo taehoon@dpc.or.kr tsseo@kisti.re.kr. Background.

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Study report on SMM process

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  1. ISO/IEC JTC1/SC32 WG2 Interim Meeting Seoul, Korea Study report on SMM process 2007. 12. 6 Tae-Hoon Lim and Tae-Sul Seo taehoon@dpc.or.kr tsseo@kisti.re.kr

  2. Background • According to the resolution of SC32 New York meeting (SC32N1604a), the study on Semantic Harmonization of Metadata was performed. • Reference: SC32N1658 SC32 WG2 Interim Meeting, Seoul, Korea

  3. Summary • Title was changed. • The procedures were modified. • Name of each step was changed • The 2nd and 3rd steps can be replaced by each other. • A description system for mapping was established. SC32 WG2 Interim Meeting, Seoul, Korea

  4. Title change • From “semantic harmonization of metadata” • To “semantic metadata mapping (SMM) process” • The later is more specific expression than the former. SC32 WG2 Interim Meeting, Seoul, Korea

  5. Procedure modification 1st Surveying metadata sets 1st Collecting metadata schema 2nd Constructing common DECs based on 11179 2nd Grouping attributes 3rd Grouping data elements by the DECs 3rd Finding common DECs 4th Completing crosswalks 4th Mapping into a table SC32 WG2 Interim Meeting, Seoul, Korea

  6. Semantic Metadata Mapping Process Overall Process 1st Collecting metadata schema 2nd Grouping attributes 3rd Finding common DECs 4th Mapping into a table • The 2nd and 3rd steps can be replaced by each other. SC32 WG2 Interim Meeting, Seoul, Korea

  7. Semantic Metadata Mapping Process 1st. Collecting metadata schema • Survey and identify candidate metadata schema in a domain. • Surveying form includes: • Domain name, Service DB name, or an other equivalent name. • Number of fields • Sample data • Value domains SC32 WG2 Interim Meeting, Seoul, Korea

  8. Semantic Metadata Mapping Process 2nd. Grouping attributes • Selecting a metadata set as a primary metadata set. • The simplest or the highest level metadata set is desirable to be the primary one. • For all available metadata schema, attributes should be aggregated by the attributes of the primary metadata set. • There may exist attributes which aren’t fitted to any of them. • Some attributes, which are not important, may be removed. • The remaining are grouped separately. • Metadata experts should perform the work along with domain experts. SC32 WG2 Interim Meeting, Seoul, Korea

  9. Semantic Metadata Mapping Process 3rd. Finding common DECs • Analyzing each attribute of the primary metadata set and find out an object class and a property hidden in and related to the attribute. • Constructing common DECs based on ISO/IEC 11179 standard using the object classes and the properties. • If there exists an attribute which isn’t fitted to any of the DECs, a new DEC may be constructed for them. SC32 WG2 Interim Meeting, Seoul, Korea

  10. Semantic Metadata Mapping Process 4th. Mapping into a table • Finally, arranging all attributes into a table by the common DECs. • Comments on the types of mapping can be included in the table as bellow. • Same,no difference: no description • Level difference: upper/lower terms • Domain difference: generic/specific (book, technical report, article, …) • Term difference: synonym, antonym or preferred term • Naming rule difference: Order or representation rules • A recommended set of metadata can be provided for guiding future standardization. SC32 WG2 Interim Meeting, Seoul, Korea

  11. Application to e-Book • Domain: e-Book • (1st) Available metadata sets: OpenEBPS, MODS and TEI • primary metadata set: OpenEBPS SC32 WG2 Interim Meeting, Seoul, Korea

  12. Application to e-Book • (2nd) Grouping attributes SC32 WG2 Interim Meeting, Seoul, Korea

  13. Application to e-Book • (3rd) Constructing common DECs based on 11179: • Object class: e-Book • Properties: title, author, subject, abstract, publisher, distributor, authority, contributor, publication-date, genre, format, extent, identifier, language, coverage-geographic, coverage-temporal, right, location, edition • DECs: ebookTitle, ebookAuthor, ebookSubject, ebookAbstract, ebookPublisher, ebookDistributor, ebookAuthority, ebookContributor, ebookPublication-date, ebookGenre, ebookFormat, ebookExtent, ebookIdentifier, ebookLanguage, ebookCoverage-geographic, ebookCoverage-temporal, ebookRight, ebookLocation, ebookEdition SC32 WG2 Interim Meeting, Seoul, Korea

  14. Application to e-Book • (4th) Mapping into a table SC32 WG2 Interim Meeting, Seoul, Korea

  15. Future plan • The SMM process will be elaborated more in order to be proposed as a new work item in ISO/IEC JTC1/SC32 next year. SC32 WG2 Interim Meeting, Seoul, Korea

  16. Thank you! SC32 WG2 Interim Meeting, Seoul, Korea

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