What's so great about 5 star data?

Nyílt adatok - Open access konferencia
3 October 2013

http://www.w3.org/2013/Talks/1003_phila_5star/

Phil Archer <phila@w3.org>

@philarcher1

The 5 Stars of Linked Open Data

5 Star Linked data Mug
★Available on the Web (whatever format) but with an open licence, to be Open Data
★★Available as machine-readable structured data (e.g. excel instead of image scan of a table)
★★★ as (2) plus non-proprietary format (e.g. CSV instead of Excel)
★★★★All the above plus, Use open standards from W3C (RDF and SPARQL) to identify things, so that people can point at your stuff
★★★★★All the above, plus: Link your data to other people’s data to provide context

Originally developed by Tim Berners-Lee

★ Available on the Web

Usually means PDF, or worse, a screenshot of something.

You need to be a (sighted) human to access the information.

★ Available on the Web

today's agenda as a screenshot

★ ★ Available as machine-readable structured data

2nd October ePSI Platform Workshop agenda
Moderated by: Zoltan Varjú, Precognox, Hungary
TimeActivitySpeaker
09:00-09:30Registration+coffee
09:30-10:20Welcome and Presentation
Actions of the European Commission/PSI Directive
Salutation from Hungarian Government		 Márta Nagy-Rothengas
European Commission DG CONNECT
TBC
Ministry of National Development in Hungary
………

★ ★ Available as machine-readable structured data

<table id="agenda">
  <caption>2nd October ePSI Platform Workshop agenda<br /><span>Moderated by: Zoltan Varjú, Precognox, Hungary</span></caption>
  <thead><tr><th>Time</th><th>Activity</th><th>Speaker</th></tr></thead>
  <tbody>
    <tr class="odd"><td>09:00-09:30</td><td colspan="2">Registration+coffee</td></tr>
    <tr><td>09:30-10:20</td>
        <td>Welcome and Presentation<br />
        Actions of the European Commission/PSI Directive<br />
        Salutation from Hungarian Government</td>
        <td>Márta Nagy-Rothengas<br /><span class="affiliation">European Commission DG CONNECT<br />
        TBC<br />
        <span class="affiliation">Ministry of National Development in Hungary</span></td>
    </tr>
    <tr class="odd">
      <td>…</td>
      <td>…</td>
      <td>…</td>
    </tr>
  </tbody>
</table>

★ ★ Available as machine-readable structured data

Screenshot of agenda in Excel

★ ★ Available as machine-readable structured data

Screenshot of the code behind the Excel sheet

★ ★ ★ Non-proprietary format

CSV* is King:

* Comma Separated Variables

★ ★ ★ Non-proprietary format

Prescribing Analytics logo An excellent example of what can be done with 3 star data.

 SHA	PCT	PRACTICE	BNF CODE	BNF NAME                                    	ITEMS  	NIC        	ACT COST   	QUANTITY	PERIOD
Q30	5D7	A86003	0101010G0AAABAB	Co-Magaldrox_Susp 195mg/220mg/5ml S/F   	18	52.24	48.71	10000	201206
Q30	5D7	A86003	0101010N0AAAAAA	Antacid/Oxetacaine_Oral Susp S/F        	1	97.42	89.77	300	201206
Q30	5D7	A86003	0101010R0AAABAB	Simeticone_Susp 40mg/ml S/F             	2	4.9	4.58	100	201206
Q30	5D7	A86003	0101021B0AAAHAH	Gppe Liq_Gaviscon S/F                   	2	4.45	4.17	1000	201206
Q30	5D7	A86003	0101021B0AAALAL	Sod Algin/Pot Bicarb_Susp (Aniseed) S/F 	3	11.8	10.97	1300	201206
Q30	5D7	A86003	0101021B0BCAAAC	Gastrocote_Tab                          	2	14.04	13	400	201206
Q30	5D7	A86003	0101021B0BEADAJ	Gaviscon Infant_Sach 2g (Dual Pack) S/F 	6	65.78	60.79	330	201206
Q30	5D7	A86003	0101021B0BEAIAL	Gaviscon Advance_Liq (Aniseed) S/F      	14	85.8	79.49	9450	201206
Q30	5D7	A86003	0101021B0BEAKAQ	Gaviscon Advance_Liq (Peppermint) S/F   	11	55.76	51.71	5850	201206
Q30	5D7	A86003	0101021B0BEAQAP	Gaviscon Advance_Tab Chble 500mg Mint   	4	21.76	20.17	480	201206

★ ★ ★ Non-proprietary format

Prescribing Analytics logo An excellent example of what can be done with 3 star data.

Screenshot

★ ★ ★ ★ Use open standards from W3C to identify things, so that people can point at your stuff

http://data.ordnancesurvey.co.uk/id/postcodeunit/IP45TW

screenshot of Ordnance Survey page about IP4 5TW

★ ★ ★ ★ Use open standards from W3C to identify things, so that people can point at your stuff

http://business.data.gov.uk/id/company/04285910

<rdf:RDF xmlns:cs0="http://www.companieshouse.gov.uk/terms/"
         xmlns:foaf="http://xmlns.com/foaf/0.1/"
         xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
  <rdf:Description rdf:about="http://data.companieshouse.gov.uk/doc/company/04285910#RegAddress">
    <cs0:Postcode>CO11 1UN</cs0:Postcode>
    <cs0:County>MANNINGTREE ESSEX</cs0:County>
    <cs0:AddressLine2>DALE HALL INDUSTRIAL ESTATE</cs0:AddressLine2>
    <cs0:PostTown>LAWFORD</cs0:PostTown>
    <cs0:AddressLine1>17 RIVERSIDE AVE WEST</cs0:AddressLine1>
  </rdf:Description>
  <rdf:Description rdf:about="http://business.data.gov.uk/id/company/04285910">
    <cs0:IncorporationDate>12/09/2001</cs0:IncorporationDate>
    <cs0:Returns rdf:resource="http://data.companieshouse.gov.uk/doc/company/04285910#Returns"/>
    <cs0:CompanyName>APPLE BINDING LTD</cs0:CompanyName>
    <cs0:SICCodes rdf:resource="http://data.companieshouse.gov.uk/doc/company/04285910#SICCodes"/>
    <cs0:Address rdf:resource="http://data.companieshouse.gov.uk/doc/company/04285910#RegAddress"/>
    <cs0:Accounts rdf:resource="http://data.companieshouse.gov.uk/doc/company/04285910#Accounts"/>
    <cs0:CompanyNumber>04285910</cs0:CompanyNumber>
    <cs0:CompanyStatus>Active</cs0:CompanyStatus>
    <cs0:CountryOfOrigin>United Kingdom</cs0:CountryOfOrigin>
    <cs0:CompanyCategory>Private Limited Company</cs0:CompanyCategory>
  </rdf:Description>
…
</rdf:RDF>

★ ★ ★ ★ Use open standards from W3C to identify things, so that people can point at your stuff

Why is

http://business.data.gov.uk/id/company/04285910

better than

 SHA	PCT	PRACTICE	BNF CODE	BNF NAME                                    	ITEMS  	NIC        	ACT COST   	QUANTITY	PERIOD
Q30	5D7	A86003	0101010G0AAABAB	Co-Magaldrox_Susp 195mg/220mg/5ml S/F   	18	52.24	48.71	10000	201206

★ ★ ★ ★ Use open standards from W3C to identify things, so that people can point at your stuff

Why is

http://business.data.gov.uk/id/company/04285910

better than

 SHA	PCT	PRACTICE	BNF CODE	BNF NAME                                    	ITEMS  	NIC        	ACT COST   	QUANTITY	PERIOD
Q30	5D7	A86003	0101010G0AAABAB	Co-Magaldrox_Susp 195mg/220mg/5ml S/F   	18	52.24	48.71	10000	201206

(Because you can look it up; because you can refer to a URI in any context, unlike 'Q30' which only means something in a specific context).

★ ★ ★ ★ ★ Linked Data

Linked Data Basics

Here is a picture.

Statue of Einstein outside the Science Museum in Canberra

Linked Data Basics

Here is a picture.

Of Albert Einstein

Statue of Einstein outside the Science Museum in Canberra

Linked Data Basics

Here is a picture.

Of Albert Einstein

And his famous equation: e=mc2

Statue of Einstein outside the Science Museum in Canberra

Linked Data Basics

Here is a picture.

Of Albert Einstein

And his famous equation: e=mc2

Actually, it's a picture of a sculpture of Albert Einstein

Statue of Einstein outside the Science Museum in Canberra

Linked Data Basics

Here is a picture.

Of Albert Einstein

And his famous equation: e=mc2

Actually, it's a picture of a sculpture of Albert Einstein

Find out more...

Google Bing Yahoo! Statue of Einstein outside the Science Museum in Canberra

Linked Data Basics

Wouldn't it be great if your computer could do all that looking up for you?

Linked Data Basics

http://www.w3.org/2012/Talks/0710_phila_bcs/einstein.jpg is a http://en.wikipedia.org/wiki/Image.

Status of Einstein outside the Science Museum in Canberra

Of http://en.wikipedia.org/wiki/Albert_Einstein

And his famous equation: http://en.wikipedia.org/wiki/Mass-energy_equivalence

Actually, it's a http://en.wikipedia.org/wiki/Image of a http://en.wikipedia.org/wiki/Sculpture of http://en.wikipedia.org/wiki/Albert_einstein

alt : Your browser has no SVG support. Please install Adobe SVG Viewer plugin (for Internet Explorer) or use Firefox, Opera or Safari instead.
alt : Your browser has no SVG support. Please install Adobe SVG Viewer plugin (for Internet Explorer) or use Firefox, Opera or Safari instead.
alt : Your browser has no SVG support. Please install Adobe SVG Viewer plugin (for Internet Explorer) or use Firefox, Opera or Safari instead.

Linked Data Basics

The sculpture of Einstein outside the NAS building, Constitution Ave, Washington, DC
alt : Your browser has no SVG support. Please install Adobe SVG Viewer plugin (for Internet Explorer) or use Firefox, Opera or Safari instead.

★ ★ ★ ★ ★ Linked Data Users: UN FAO (Agrovoc)

screenshot of Agrovoc linked data portal

★ ★ ★ ★ ★ Linked Data Users: BBC

screenshot of BBC London 2012 homepage

★ ★ ★ ★ ★ Linked Data Users: UK Environment Agency

screenshot of Bathing Water Quality Explorer for Felixstowe South

NOT Linked Data Users: FR Health Ministry

screenshot of French Bathing Water Quality Explorer for Plage des Blancs Sablons near Le Conquet

★ ★ ★ ★ ★ Linked Data Users: UK Environment Agency

screenshot of Bathing Water Quality Explorer predictions

★ ★ ★ ★ ★ Linked Data Users: Companies House

http://business.data.gov.uk/id/company/04285910

screenshot of Companies House web page about Apple Binding

★ ★ ★ ★ ★ Linked Data Users: The National Archives

screenshot of London Gazette Website, soon to change

Current Web site soon to be retired

★ ★ ★ ★ ★ What's so great about 5 star data?

★ ★ ★ ★ ★ What's so great about 5 star data?

http://www.w3.org/2013/Talks/1003_phila_5star/

Phil Archer <phila@w3.org>

@philarcher1