1. Metadata Primer Selvakumar T.S 1 August 9, 2009 Cadence Confidential: Cadence Internal Use Only

2. Source: Siderean Software, Inc.All of the answers are here. Now, what was the question?2August 9, 2009 Cadence Confidential: Cadence Internal Use Only 3. Issues with Information Access Today Tons of content from disparate sources. Cumbersome navigation. Keyword search assumes you know what you are looking for. L Large number of search results -- most of them b fh ltt f th irrelevant. Lack of context in search results. Search engines rely on mathematical algorithms to determine relevance and ranking of search results. Fortune 500 companies lost $12 billion due to inability to find information in 20032003. -IDC 3 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 4. A Quick Demo on Information Access Issues and Possibilities Source: 4 5. Agenda Understanding Metadata Metadata Applications Metadata Standards Working with Metadata Future of Metadata 5 6. Understanding Metadata 6 7. INVENT VEN E TIWhat is Metadata? at s etadataData that provides information about other data. Merriam WebstersOnline Dictionary Data about data. For example, the title, subject, author, and size of a file constitute metadata about the file. file Microsoft Computer 7Dictionary, Fifth Edition 8. Metadata Example: File > Properties in Microsoft Office 8 9. Metadata Example: Album Information in Media Players 9 10. Metadata in HTML content= /> 10 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 11. Metadata Reflects Content and User Needs 11 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 12. Types of Metadata Intrinsic: metadata that an object holds about itselfFile name, file size Descriptive: metadata that describes th object Di tit d t th t d ib the bj t Subject, title, audience, keywords Metadata describes the who, what, when, where and Administrative and Rights: metadata used to manage how about every facet of datadata.the object 12Create date, modify date, expiry 13. Metadata Applications 13 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 14. Improved Search with Metadata Filter search by metadata. 14 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 15. Improved Navigation with Metadata Aggregate topics with same metadata to createbrowseable indexes or categories. 15 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 16. Display Context and Relationships with MetadataCross-marketing on amazon.com.g 16 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 17. Personalization and customization Display content according to role or audience audience. 17 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 18. Other Metadata Applications Discovery and compliance Identify the need to update, retain, protect, and dispose content for i t f internal or regulatory requirements.l l ti t Interoperability Content tagged with same metatags (ggg (META name) from) different sources can be easily integrated.Metadata allows unstructured content to be managedlike structured content. 18 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 19. Metadata Standards 19 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 20. Need for Metadata Standards Different information providers using different metadataschemas. Even metadata schemas of groups within organizationsare different or out of sync. The result: Inconsistent search results. Lack of interoperability. Information silos. An US$ 2B Oil & Gas project suffered a loss of US$120M due to inability tolocate a document or a misunderstanding about which document is needed. -SchemaLogic, Inc.20 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 21. Some Metadata Standards Dublin Core Metadata support in DocBook andppDITA IMS Global Learning Consortium LOM (IEEEs L (IEEE Learning Obj i ObjectMetadata) SCORM (ADL) - Learning Objects EAD (Encoded Archival Description)Standard formats and approaches enable interoperability and the sharing of metadata. g21 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 22. Dublin Core http://dublincore.org General purpose metadata standard for use acrossdomains. 15 core elements. ElElement qualifiers t narrow th meaning of elements. tlifitotheif lt Example: A Date Created versus a Date Modified. Encoding schemes: Controlled vocabularies or parsingrules to refine the interpretation of an element. Example: A term from a controlled vocabulary such as the Library of Congress Subject Headings Headings. Can be represented in HTML and in XML (RDF).22 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 23. Dublin Core Metadata ElementsTitleCreatorSubjectjDescriptionPublisherContributorDateTypeFormatIdentifier Id tifiSourceLanguageRelationCoverageRights23 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 24. Dublin Core Metadata Example Source: http://www.sics.se/~preben/DC/DC_guide.html 24 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 25. Metadata Support in DocBook Metadata at different levels title, info and bookinfo at book level title, info and chapterinfo at chapter level title, info and chapterinfo at section level DocBook supports Dublin Core schema 25 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 26. Metadata Support in DITADITA supports a variety of standard and custom metadata: Author information Copyright information Product information Resource ID f h l systems RIDs for help t Document tracking information Audience information Keywords K d Custom metadata (otherprops) element defines metadata at the topic level. element defines metadata that applies to a topic when it appears in a map.Metadata at every level26 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 27. Sample of Metadata elements within element (name of topics author) (document tracking information) (intended audience)type=user | purchaser | administrator | | otherothertype=jjob=installing | customizing | administering | | otherg g gotherjob=experiencelevel=novice | general | expert (content category used for grouping topics) (keywords for search engines) 27 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 28. Working with Metadata 28 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 29. Creating Metadata Create it from scratch. Reuse existing metadata and build on it. Start with a standard. 29 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 30. Metadata Process CreateAdd Content Publish Metadata Review &Review &Improve Improve Identify content that will benefit from metadata using the 80/20 rule.Build a controlled vocabulary or use a vocabulary from a commercial source such as www.taxonomywarehouse.com. y Example: The Getty Thesaurus of Geographic Names (TGN)Apply metadata to content using templates or using indexing tools.Get it reviewed.reviewedEvaluate search logs and user surveys to improve metadata.Continuously review metadata. 30 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 31. Metadata Template: A Manual Approach 31 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 32. Metadata Indexing and Discovery Tools Data Harmony http://www.dataharmony.comInterwoven MetaTagger http://www.interwoven.comMondeca http://www.mondeca.comMultiTes http://www.multites.com/Synaptica http://www.synaptica.comSchemaLogic http://www.schemalogic.comWebChoir http // http://www.webchoir.comebchoir comWordMap http://www.wordmap.com/ 32 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 33. Future of Metadata 33 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 34. Future of Metadata Automated metadata generation. Social tagging tagging by users. Geo tagging. 34 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 35. Social Tagging Example:tagging 35 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 36. Social Tagging Example: 36 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 37. Geo Tagging Example 37 August 9, 2009 Cadence Confidential: Cadence Internal Use Only 38. Q&A38 August 9, 2009 Cadence Confidential: Cadence Internal Use Only