Ways of thinking about Linked Data

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A presentation I've been using with various audiences who want to understand the principles behind Linked Data from a non-technical perspective. Doesn't tell you much without hearing the words with it...

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Ways of thinking about Linked Data

  1. 1. shared innovation™ Ways of thinking about Linked Data Rob Styles, SeniorTechnical Consultant rob.styles@talis.com
  2. 2. shared innovation™ A brief history of the Web.
  3. 3. shared innovation™ The Web is notThe Internet.
  4. 4. shared innovation™
  5. 5. shared innovation™
  6. 6. shared innovation™
  7. 7. shared innovation™ 1990 —Tim Berners-Lee starts WorldWideWeb
  8. 8. shared innovation™ 1990 —Tim Berners-Lee starts WorldWideWeb 2000 — Jimmy Wales starts Wikipedia
  9. 9. shared innovation™ 1980 —Tim Berners-Lee wrote Enquire-Within-Upon-Everything 1990 —Tim Berners-Lee starts WorldWideWeb 2000 — Jimmy Wales starts Wikipedia
  10. 10. shared innovation™ 1980 —Tim Berners-Lee wrote Enquire-Within-Upon-Everything 1990 —Tim Berners-Lee starts WorldWideWeb 2000 — Jimmy Wales starts Wikipedia 2007 —Tim Berners-Lee starts Linking Open Data
  11. 11. shared innovation™ What are people looking for?
  12. 12. shared innovation™ What are people looking for? 1. roberta mancino 2. tokyo sandblaster 3. josiah viera 4. marcus dupree 5. missle launch california 6. missile launch california 7. jack mcbrayer 8. dot jones 9. paul millsap 10. ab cuts http://www.google.com/trends/hottrends?sa=X&date=2010-11-9
  13. 13. shared innovation™ Format.
  14. 14. shared innovation™ Search Engine Results.
  15. 15. shared innovation™
  16. 16. shared innovation™
  17. 17. shared innovation™ PageRank.
  18. 18. shared innovation™
  19. 19. shared innovation™ Ambiguity. (the Paris Hilton problem)
  20. 20. shared innovation™
  21. 21. shared innovation™
  22. 22. shared innovation™ Wikipedia.
  23. 23. shared innovation™ Data is just people saying stuff.
  24. 24. shared innovation™ http://www.bbc.co.uk/news/uk-11372185
  25. 25. shared innovation™ Semantics is meaning.
  26. 26. shared innovation™ Syntax is the rules.
  27. 27. shared innovation™ The Web of Documents; a Syntactic Web.
  28. 28. shared innovation™ The Web of Data; a Semantic Web.
  29. 29. shared innovation™ Use web addresses as names for real things.
  30. 30. shared innovation™ http://www.bbc.co.uk/nature/species/Lion#species
  31. 31. shared innovation™ When someone requests that URL, give back useful information.
  32. 32. shared innovation™ Provide links to other things, both in your own site and elsewhere.
  33. 33. shared innovation™ Linked Data is not* about publishing data on the web, it’s about making the things your website says machine-readable. * just
  34. 34. shared innovation™
  35. 35. shared innovation™
  36. 36. shared innovation™
  37. 37. shared innovation™
  38. 38. shared innovation™ • “Mallard” is a Species.
  39. 39. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”.
  40. 40. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”.
  41. 41. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others).
  42. 42. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip.
  43. 43. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”.
  44. 44. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”.
  45. 45. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”.
  46. 46. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”.
  47. 47. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”. Mallard Species a
  48. 48. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”. Mallard Species a Anas Platyrhynchos scientific name
  49. 49. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”. Mallard Species a Anas Platyrhynchos scientific name Wild duck common name
  50. 50. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”. Mallard Species a Anas Platyrhynchos scientific name Wild duck common name Lake Habitat a lives in
  51. 51. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”. Mallard Species a Anas Platyrhynchos scientific name Wild Nature Video Clipa Wild duck common name Lake Habitat a lives in
  52. 52. shared innovation™ • “Mallard” is a Species. • “Mallard” has a scientific name of “Anas Platyrhynchos”. • “Mallard” has a common name of “Wild duck”. • “Mallard” lives in the “Lake” habitat (amongst others). • “Wild Nature” is a video clip. • “Wild Nature” is about the species “Mallard”. Mallard Species a Anas Platyrhynchos scientific name Wild Nature Video Clipa about Wild duck common name Lake Habitat a lives in
  53. 53. shared innovation™ Properties of Linked Data
  54. 54. shared innovation™ Properties of Linked Data • Repeated values are simple (hard in CSV, simple in XML)
  55. 55. shared innovation™ Properties of Linked Data • Repeated values are simple (hard in CSV, simple in XML) • Removing duplication is simple (no mechanism in CSV, or XML)
  56. 56. shared innovation™ Properties of Linked Data • Repeated values are simple (hard in CSV, simple in XML) • Removing duplication is simple (no mechanism in CSV, or XML) • Many-to-Many relationships are simple (no built-in mechanism in CSV, or XML, complicated in RDBMS)
  57. 57. shared innovation™ Properties of Linked Data • Repeated values are simple (hard in CSV, simple in XML) • Removing duplication is simple (no mechanism in CSV, or XML) • Many-to-Many relationships are simple (no built-in mechanism in CSV, or XML, complicated in RDBMS) • Mixing data from several places is simple (no built-in mechanism in CSV, XML or RDBMS)
  58. 58. shared innovation™ Properties of Linked Data • Repeated values are simple (hard in CSV, simple in XML) • Removing duplication is simple (no mechanism in CSV, or XML) • Many-to-Many relationships are simple (no built-in mechanism in CSV, or XML, complicated in RDBMS) • Mixing data from several places is simple (no built-in mechanism in CSV, XML or RDBMS) • Data Structure is self-describing (CSV needs you to know the structure, XML has limited support)
  59. 59. shared innovation™ Licensing...
  60. 60. shared innovation™ Licensing... • Data is not a Creative Work
  61. 61. shared innovation™ Licensing... • Data is not a Creative Work • Copyright does not apply (consistently)
  62. 62. shared innovation™ Licensing... • Data is not a Creative Work • Copyright does not apply (consistently) • Creative Commons is a Copyright-based license
  63. 63. shared innovation™ Licensing... • Data is not a Creative Work • Copyright does not apply (consistently) • Creative Commons is a Copyright-based license • Therefore...
  64. 64. shared innovation™ Licensing... • Data is not a Creative Work • Copyright does not apply (consistently) • Creative Commons is a Copyright-based license • Therefore... • Creative Commons does not apply to data...
  65. 65. shared innovation™ Licensing... • Data is not a Creative Work • Copyright does not apply (consistently) • Creative Commons is a Copyright-based license • Therefore... • Creative Commons does not apply to data... • Use CC0 or ODC PDDL or ODC ODbL (for share-alike)
  66. 66. shared innovation™ but more...Think in terms of webs of things, not hierarchies, site maps or user journeys.
  67. 67. shared innovation™ still more...An internet of things
  68. 68. shared innovation™ Key Points !
  69. 69. shared innovation™ Key Points ! • Linked Data, RDF, is the HTML for data. (it’s 1995 all over again)
  70. 70. shared innovation™ Key Points ! • Linked Data, RDF, is the HTML for data. (it’s 1995 all over again) • Linked Data, web-thinking, is as old as the Library of Alexandria (and like Alexandria, it is a great way to share knowledge)
  71. 71. shared innovation™ Key Points ! • Linked Data, RDF, is the HTML for data. (it’s 1995 all over again) • Linked Data, web-thinking, is as old as the Library of Alexandria (and like Alexandria, it is a great way to share knowledge) • Linked Data makes data part of the web. (a first class citizen alongside HTML, a target for linking to)
  72. 72. shared innovation™ Key Points ! • Linked Data, RDF, is the HTML for data. (it’s 1995 all over again) • Linked Data, web-thinking, is as old as the Library of Alexandria (and like Alexandria, it is a great way to share knowledge) • Linked Data makes data part of the web. (a first class citizen alongside HTML, a target for linking to) • Linked Data lets anyone say anything about anything. (so don’t trust everything you read...)
  73. 73. This work is Copyright © 2008 Talis Group Limited. It is licensed under the Creative Commons Attribution 3.0 Unported License Full details at: http://creativecommons.org/licenses/by/3.0/ You are free: to Share — to copy, distribute and transmit the work to Remix — to adapt the work Under the following conditions: Attribution. You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). • For any reuse or distribution, you must make clear to others the license terms of this work. • Any of the above conditions can be waived if you get permission from the copyright holder. • Nothing in this license impairs or restricts the author's moral rights. • Some Content in the work may be licensed under different terms, this is noted separately. shared innovation™

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