Implementing the Verifiable Claims Data Model

David Hyland-Wooddavid@hyland-wood.org@prototypo3 April 2017

Today’s Data Systems

Lack of Context

Required Context

Organisation Charts

Organisation Charts redux

A

B C

E

A B C

B F

C D E

D

E

Node 1st Adjacent

2nd Adjacent

Tree Table

DF

A

B C

D E

M

N

O P

Q

F

A

B C

D E

M

N

O P

Q

R

F

A

B C

D E

M

N

P

R

EF

A

B C

D E

M

N

P

R

F

A

B C

D E

M

N

P

R

F

The Web makes graphs out of trees

40% annual growth in data produced

5% annual growth in IT spending

1.8 ZB

35 ZB

2012 2020

Digital Information Produced

294B

1 Trillion

2 Trillion

3 Trillion

4 Trillion

5 Trillion

Online AdImpressions

Emails Tweets

Daily (2013)

230M

4.8T

RDF

Thing 1 Thing 2

Relationship

Thing 1 Thing 2

Relationship

Thing 1(the “subject”)

Thing 2(the “object”)

Relationship(the “predicate”)

https://about.me/david_wood

https://about.me/damien_fitzpatrick

http://xmlns.com/foaf/0.1/knows

aboutme:david_wood

about.me:damien_fitzpatrick

foaf:knows

aboutme: https://about.me/foaf: http://xmlns.com/foaf/0.1/

aboutme:david_wood

about.me:damien_fitzpatrick

foaf:knows

aboutme: https://about.me/foaf: http://xmlns.com/foaf/0.1/xsd: http://www.w3.org/2001/XMLSchema#

David

Hyland-Wood

foaf:givenName

foaf:surname

1963-08-28

foaf:birthday

xsd:date

xsd:string

xsd:string

Lack of Context

Linked Data on the Web

my data

collector

collected by

measurement

Michael

first name

Hausenblaslast name

Person

a

a measurement

2011-01-01date

0

valueunits of measure

degrees Centigrade

...

Galway Airport

collected at

or

08 Oct 2007

07 Nov 2007

10 Nov 2007

28 Feb 2008

31 Mar 2008

18 Sep 2008

05 Mar 2009

27 Mar 2009

14 Jul 2009

Sep 2010

Sep 2011

Sep 2011

Crawlable Linked Datasets as of February 2016

M A N N I N G

David WoodMarsha ZaidmanLuke RuthWITH Michael Hausenblas

FOREWORD BY Tim Berners-Lee

Structured data on the Web

Implementing the Verifiable Claims Data Model

David Hyland-Wooddavid@hyland-wood.org@prototypo3 April 2017

AcknowledgementsBouncer photo by Hans-Petter Fjeld (CC BY-SA 2.5)

Oak tree photo by pixabay.com user klausPeter (CC0)

Linking Open Data cloud diagram 2017, by Andrejs Abele, John P. McCrae, Paul Buitelaar, Anja Jentzsch and Richard Cyganiak. http://lod-cloud.net/

Linked Data: Structured Data on the Web book cover © 2014 Manning Publications Inc.