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Metadata makes the world go round 2


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My metadata session for COMO.

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Metadata makes the world go round 2

  1. 1. Metadata makes the world go round robin fay / georgia webgurl twitter, + linkedin, googleSLIDES AT SLIDESHARE.NET/ROBINFAY
  2. 2. Did you know metadata iseverywhere? That you are a metadata creator?Explore how data drives the web, library catalogs,devices (mp3 players, etc.),and how we create and edit that metadata. robin fay / georgia webgurl twitter, + linkedin, googleSLIDES AT SLIDESHARE.NET/ROBINFAY
  3. 3. Metadata makes the world go round Metadata makes it happen… Our world is ●Wired and wireless ●Mobile ● New technology and capabilities every day ● Data (& metadata driven) ● User centered / personalized ● Social / sharing ● Image based ● Learning differentlyRobin Fay, @georgiawebgurl robinfay. net
  4. 4. Metadata makes the world go round Our world is moving towards the semantic web integrated technology ● (devices talking to each other in new ways) ● Semantic Web Personalized Our world: Fay, @georgiawebgurl robinfay. net
  5. 5. Metadata makes the world go round ● While programming languages are the engines which run the web and the software we use, metadata is akin to street signs or maps – communicating to people, software, and other computer languages. ● This communication can be information about the content (descriptive), about its technical specifications or creation. ● Metadata is truly everywhere – often hidden behind the tools and online products we use.Robin Fay, @georgiawebgurl
  6. 6. APIs are programming interfaces which facilitate communication MARC can be exported as XML and Non MARC metadata is often written in XML, a flexible programming language.Robin Fay, Univ. of Georgia,
  7. 7. ● Types of metadata: ● Descriptive ● Structural ● Administrative - includes rights ● Many forms of metadata include elements of each of these; however it is dependent upon the schema. ● A schema is a set of rules covering the elements and requirements for coding. Examples of schemas include Dublin Core, TEI, EAD, and others.Robin Fay, @georgiawebgurl robinfay. net
  8. 8. Metadata 101 METS is a standard which includes administrative, descriptive & structural metadata. Karen Coyle 2004, Fay, @georgiawebgurl robinfay. net
  9. 9. Metadata 101 ● Descriptive metadata describes a resource for purposes such as discovery and identification. ● It can include elements such as title, abstract, author, and keywords. Keywords can include tags (generally uncontrolled vocabulary) and/or controlled vocabulary such as LC subject headings. Keywords is probably one of the most used terms on the web and its meaning is context based.Robin Fay, @georgiawebgurl robinfay. net
  10. 10. Metadata 101 ● Examples of descriptive metadata include ● MARC bibliographic records; ● Tags, titles, and notes in flickr , del.ici.ous, and other social networking sites; ● metadata embedded in the code of websites; ● and other tagging projects such as, OCLC, LibraryThing, some digital library projects; ● … really any website where a user (or authorized user, such as a cataloger or member participant) can create or edit description, keywords/tags, title, creator information and more. ● Let’s look at just a few of these focusing on the descriptive metadata…Robin Fay, @georgiawebgurl robinfay. net
  11. 11. Metadata 101 ● The metadata generated by catalogers within a MARC bibliographic record is considered descriptive metadata. It provides information about the item, from its title and creator to its format to appropriate LCSH or Sears subject headings (controlled vocabulary keywords) assigned by the cataloger. ● How that metadata is interpreted is dependent upon the software or programming language.Robin Fay, @georgiawebgurl robinfay. net
  12. 12. Metadata 101 A familiar example: A MARC formatted bib record from an OPAC (library catalog).Robin Fay, @georgiawebgurl robinfay. net
  13. 13. Metadata 101 ● Many digital projects from databases to websites allow (and even require) the cataloger to create or edit administrative (like rights; DRM), or structural metadata (like related files). ● Metadata from these databases can often be cross- walked (exported from one; imported into another). An example of cross-walking is creating a MARC record from a non-MARC format and then importing the derived record into a MARC based library catalog. Well look at one library related example of thisRobin Fay, @georgiawebgurl robinfay. net
  14. 14. The record in the ETD (Electronic Theses & Dissertations database that can be edited... Note: The MARC designated fields. Cataloger’s workform interface to the MySQL db.
  15. 15. Note: The indicators and fieldtags are populated. This is thescreen that starts theconversion to a MARC record.
  16. 16. A beautiful MARC recordMetadata 101 imported into a library catalog. Robin Fay, Univ. of Georgia, Metadata 101,
  17. 17. Metadata 101 ● Although catalogers create, edit and use metadata everyday, metadata goes far beyond the library catalog or even the library website. ● Metadata generation and editing beyond the library catalog is a common activity for many internet users these days, including you! If you are not creating metadata on the Internet, you are using it to search google and other search engines.Robin Fay, @georgiawebgurl robinfay. net
  18. 18. Metadata: All the places it will go ● When you import your instagram (or Flickr) photos into Facebook, you are starting a conversion process, too. Metadata that you have created (locations, dates, etc.) may or may not get added to Facebook. (Most of it doesnt, by the way, but you can add it in manually). ● You also create metadata when you blog, post to Facebook, tweet, tag a person (or place), or well.. any content you create on the web. Robin Fay, @georgiawebgurl
  19. 19. Web designers also create metadata to Metadata: Web describe the website and its content. LC Subject headings can be coded into the Designers do it meta tags. Many websites now carry rights metadata (administrative) Our music and ebook files carry rights metadata (DRM), Digital Rights Management.Metadata for a website is either created by the user when building the website orhand-coded into the HTML. Some search engines use these keywords to varyingdegrees. Hint> View Source Code (Right Click) View Page Source Robin Fay, @georgiawebgurl
  20. 20. is open to art educators and others; membership (free) is required to tag. This is user generated metadata.DescriptiveMetadata (tags)
  21. 21. offers both usercontributed metadata (tags) andauthority contributed controlledmetadata (subject headings,authorized forms of names &entities, etc.)Libraries and website users do it! Robin Fay, @georgiawebgurl robinfay. net
  22. 22. delicious users make a lot of metadataRobin Fay, @georgiawebgurl robinfay. net
  23. 23. Metadata: Microsoft does it too Microsoft has been adding metadata to the its documents for years; often based upon which user created the document. Newer versions allow this information to be changed more easily. PDF creators also allow the creation and editing of metadata.Robin Fay, @georgiawebgurl robinfay. net
  24. 24. Metadata: Structural metadata ● Structural metadata defines the relationship between whole and parts. ● Structural metadata can also be used for navigational purposes. Structural metadata would include links to related files.Robin Fay, @georgiawebgurl robinfay. net
  25. 25. Descriptive metadata Administrative & StructuralRobin Fay, @georgiawebgurl robinfay. net
  26. 26. Metadata: Administrative - Right and more ● Administrative metadata provides information to help manage a resource, such as when and how it was created, file type and other technical information, and who can access it. ● Subsets of administrative metadata exist but two commons ones are ● Rights management metadata, which deals with intellectual property rights, ● and preservation metadata, which contains information needed to archive and preserve a resource.Robin Fay, @georgiawebgurl robinfay. net
  27. 27. Metadata: Administrative - Right and moreRobin Fay, @georgiawebgurl robinfay. net
  28. 28. Descriptive metadataAdministrative metadata
  29. 29. Administrative Descriptive metadata Structural Descriptive Administrative / RightsRobin Fay, @georgiawebgurl robinfay. net
  30. 30. Metadata: Flickr tools Many different tools are available for users to create metadata – help for flickr usersRobin Fay, @georgiawebgurl robinfay. net
  31. 31. Metadata Makes the World Go Round Note: The association of tagging as metadataRobin Fay, @georgiawebgurl robinfay. net
  32. 32. DC Metadata generator -- help for web editors & designers Other fields in the generator include Date of coverage, copyright & format.Robin Fay, @georgiawebgurl
  33. 33. Making Metadata● We can rate, tag -- add keywords (even use controlled vocabulary in some cases), assign or flag for appropriate audience level, define genre, and more.● User generated metadata is generally created through an interface on a website and primarily descriptive; however, many sites are beginning to allow and encourage rights statements (administrative) as well as other elements of administrative and structural metadata. Robin Fay, Univ. of Georgia,
  34. 34. Metadata Automatic ● Our software creates metadata such as file names, URLs, and more (some automatically) ● Our devices create metadata - EXIF (embedded metadata) is created by our cameras. This data can include GPS related information (location), date, file format and name, camera make, file size and more. genre, and more. ●Robin Fay, @georgiawebgurl robinfay. net
  35. 35. Metadata Automatic Some of this metadata (EXIF) is used by sites like Flickr.Robin Fay, @georgiawebgurl robinfay. net
  36. 36. Metadata: What about search? Its all metadata. You cant find whats not there.Robin Fay, @georgiawebgurl robinfay. net
  37. 37. Internet Archive, Creative Commons search and Compfight all allow searching by license.Robin Fay, @georgiawebgurl robinfay. net
  38. 38. Metadata ● Concerns and thoughts ● Much of the current discussion about metadata (tagging/keywords, controlled headings vs. non- controlled headings, OCLC Community Expert Experiment, etc.) centers upon the potential differences in quality of user generated metadata. ● As with any user group, there are varying levels of expertise and understanding of the subject. ● Metadata can be good or bad. ●Robin Fay, @georgiawebgurl robinfay. net
  39. 39. Metadata ● Concerns and thoughts ● Keywords have been terribly misused in the SEO (Search Engine Optimization) community – leading not only to false results when searching but also spam and phishing attempts ● DRM is not working for digital objects. Licensing is a complicated issue for some items.Robin Fay, @georgiawebgurl robinfay. net
  40. 40. Metadata● Many collaborative websites (social networking) such as Wikipedia rely on the collective expertise of the group -- the “true” or accurate information will rise to the top.● Untrue or irrelevant information will either sink to the bottom (fewer hits, bad reviews, marked for review, etc.) or will be revised by more expert opinions. For the most part, this works fairly well; however, there are drawbacks and quality control is an ongoing issue.● Facebook Places is a Facebook project to verify and correct location related metadata - crowdsourcing metadata maintenance! Robin Fay, @georgiawebgurl
  41. 41. Metadata Makes the World Go Round ● Taking the human element out (beyond the programmers who wrote the scripts for harvesting) machine derived metadata offers the opportunity to create large chunks of metadata with minimal human effort ● However, machine derived metadata may not be able to distinguish subtleties perceivable to the human eye and mind – at least, until AI is truly viable ● Duplicates and erroneous information may occurRobin Fay, @georgiawebgurl robinfay. net
  42. 42. Metadata 101 ● Metadata to the world ! ● All of the metadata we (the world) creates is mined in some form or another. Search engines, document processing software, library catalogs, websites, digital portals, even our desktop computer’s indexing is mining our information ● The Web provides almost endless possibilities to share resources and digital objects. ● Library catalogs mirror general practices on the web; as more sites not only allow users to create metadata, sites are beginning to create user created resources, too.Robin Fay, @georgiawebgurl robinfay. net
  43. 43. ACRL Visual LiteracyMetadata on the web• Use images and visual media effectively• Design and create meaningful images and visual media• Understand many of the ethical, legal, social, and economicissues surrounding the creation and use of images and visualmedia, and access and use visual materials ethically Robin Fay,
  44. 44. Thank you! more presentations from me at