(Full version of the presentation: https://www.youtube.com/watch?v=WS9Svbmp-YY)
Information organization and systems in libraries are in a state of significant flux. In systems there is a shift to XML and RDF-based schemas and ontologies while resource description content standards have changed from AACR2 to RDA. A move from MARC to BIBFRAME and other linked data applications is on the horizon. Linked data and the semantic web have become buzzwords, but what is linked data and why it is important for librarians? How can we use it in digital curation? What can libraries do now to “prepare” for this change in their current practice?
In light of these questions, the panel presentation will discuss two projects. First, there will be coverage of a sample project using the Fedora-based open source framework, Islandora to demonstrate the concepts of connecting related data across the Web with URIs, HTTP and RDF. The second half of the presentation will describe how a consortia has taken a holistic approach to writing an RDA workflow to help front-line cataloguers develop a wider perspective when it comes to resource description (creating more structured, future compatible metadata). Up for discussion: the current state and future possibilities of library metadata with a focus on the implications of linked data.
The Impact of Linked Data in Digital Curation and Application to the Cataloguer's Workflow
1. The Impact of Linked Data in Digital Curation
and Application to the Cataloguer’s Workflow
Jenny Jing
Erin Tripp
Ian Bigelow
Stacey Boileau
Danielle Emon
Access 2015
Toronto
Sept. 10, 2015
http://www.ekoob.com/tag/linked-data/
2. Library Staff & Linked Data
Managers
Metadata
staff
IT staff
Strategy/
Resource
Skills /
Workflow
Skills /
Workflow
What/Why
How
How
3. Interface, System, Data & Linked Open Data
System/AdminInterface/Web Data/DB
Data: Queries, Perl, XML,
DB: Oracle, MySQL,
Access
Tools: Perl, Excel, XSLT
Programing: php,
Javascript, html, etc.
Publish Tools: Drupal,
WordPress
Server: Shell scripting,
config, maintain, etc.
OS: UNIX, Windows
Editor tools: Vi, Pico
Linked Data
5. What is Linked Data?
• Use URIs
• Use HTTP URI: http://viaf.org/viaf/xxx
• Use open standards such as RDF,SPARQL
• Refer to other things: Triples
• The Semantic Web:
Promotes common data formats on the web.
• The four principles of Linked Data
6. Why is it important for libraries?
• Librarians:
We put information in Information Technology.
• Add value to information:
• Create, update
• Store, preserve
• Index, catalog
• Retrieve, access
Catalog web pages
Findability, data reuse
Authority Control
7. Software Infrastructure/DCPlatforms
ILS: Voyager, Aleph
ILL,
Etc.
Link resolver : 360 Link
library guides: LibGuides
Online databases
IR (Scholarly Publications): DSpace
DAM (Digital Preservation): Fedora
Websites: Library websites
Digital Curation & Linked Data
Bring traffic? Add AU control? Catalog/find them easily?
Linked Data can:
• Web traffic: 80% of hits from Google
Home page redesign
• Data reuse: by other web applications
• Authority control: subject headings
with URIs. Don’t have to pay vendors.
• BIBFRAME: edit records faster
8. Digital Curation, Data Formats & sample works
RDF/XMLMARC Linked Data
Query: SQL, Access
Programming: VB
(BatchCat), Perl
Tools: MarcEdit
System: UNIX
Query: XQuery,
Programming: XSLT,
Perl, Javascript
Tools: Oxygen
System: UNIX
12. Acknowledgements & Resources
• Robert Chavez, Senior Content Solutions Architect, Massachusetts Medical Society
• Alison Hitchens, Cataloguing & Metadata Librarian, University of Waterloo Library
• Jodi Schneider, Digital Enterprise Research Institute, National University of Ireland
• Sharon Farnel, Metadata Coordinator, University of Alberta Libraries
Resources: http://linkeddata.org/faq
• http://tomheath.com/papers/bizer-heath-berners-lee-ijswis-linked-data.pdf
• Fedora 4.0 in Action at Penn State and Stanford
• Oregon Digital , UNLV's Linked Data Project
• Linked Data for Libraries (Cornell, Harvard & Stanford)
• http://jingjenny.wordpress.com/linked-data/
13. Linked Open Data &
Digital Repositories
Erin Tripp, discoverygarden
erin@discoverygarden.ca
@eeohalloran
With files from:
Frits van Latum, TU Delft Project Manager
19. Making the Connection
● Extra RELS EXT triples
between these objects
○ Triple = object +
predicate + subject
○ Generation of triples
was custom coded by
discoverygarden
(Delftdora module)
21. Impact on Users
Approach has potential
● Aid intuitive discovery of
repository objects
● Promote re-use of
objects
● Generate and encourage
the discussion about the
significance,
management, and the
use of materials.
http://bit.ly/1i1UNVY
22. For More Information
● The Colonial Architecture & Town Planning Repository,
http://colonialarchitecture.eu/
● In depth presentation from TU Delft Project Manager Frits van
Latum, http://bit.ly/1VDeQs7
● The discoverygarden Website,
http://www.discoverygarden.ca/
● Contact Erin Tripp,
erin@discoverygarden.ca
23. THE OCLS CATALOGUING
WORKFLOW
THE DEVELOPMENT OF A FRBR BASED RDA WORKFLOW FOR THE ONTARIO COLLEGES
STACEY BOILEAU, DANIELLE EMON, & IAN BIGELOW
ON BEHALF OF: OCLS AND BSWG
25. LINKED DATA
• LINKED DATA WILL BE A NEW REALITY FOR LIBRARIES. THIS MAY BE THROUGH BIBFRAME, OR OTHER
APPLICATIONS (SCHEMA.ORG, ALIADA … LOCAL DEVELOPMENT).
“RDA REPRESENTS A REVISION TO AACR2 THAT IMPLEMENTS FRBR CONCEPTS AND INCORPORATES
FRBR TERMINOLOGY. THE CONVERGENCE OF RDA AND FRBR WILL FOCUS CATALOGING, OR RESOURCE
DESCRIPTION, ON THE RESOURCES’ RELATIONSHIPS WITH EACH OTHER AND STEER THE PROCESS OF
RETRIEVAL AND ACCESS TOWARD NAVIGATING LINKS THROUGH A HIERARCHY OF RELATIONSHIPS. THIS
CHANGE IN EMPHASIS POSITIONS LIBRARIES TO PARTICIPATE IN THE EMERGING SEMANTIC WEB.” (SZETO,
2013, P. 306)
••HOWEVER, RDA WILL ONLY POSITION LIBRARIES TO PARTICIPATE IN THE SEMANTIC WEB IF WE
EMBRACE THESE ASPECTS OF RDA.
26. TIME TO MARC THE IMPORTANCE OF LINKED DATA FOR LIBRARIES!
•THROUGHOUT THE DEVELOPMENT OF THE OCLS CATALOGUING WORKFLOW THERE WAS A CERTAIN
TENSION EVIDENT BETWEEN DETAILING CURRENT PRACTICE AND PLANNING FOR FUTURE CHANGES. IN
CREATING A NEW RDA WORKFLOW, IT SEEMED PRUDENT TO ALSO TAKE SOME SMALL STEPS IN
ADAPTING PRACTICE FOR LINKED DATA.
“THE RESOURCE DESCRIPTION AND ACCESS (RDA) STANDARD ATTEMPTS TO BRIDGE THE GAP BETWEEN
LEGACY LIBRARY DATA AND LINKED DATA, BUT MOST CATALOGERS CONTINUE TO CREATE MARC
RECORDS IN TRADITIONAL CLOSED LIBRARY DATABASES. IN THIS TRANSITIONAL ENVIRONMENT, CAN
CATALOGERS DO SOMETHING MORE TO MAKE THEIR DATA SMARTER AND RICHER? IN SHORT, WHAT CAN
THE PRESENT-DAY CATALOGER DO TO “PREPARE THE WAY” FOR FUTURE DATA NEEDS?” (SEEMAN &
GODDARD, 2015, P. 331)
27. IN ORDER TO PREPARE FOR FUTURE BIBLIOGRAPHIC METADATA NEEDS, WE NEED TO:
1. ACKNOWLEDGE THAT MARC WILL BE HERE FOR SOME TIME TO COME…AND THUS PROVIDE
INSTRUCTION ON USING RDA IN A MARC ENVIRONMENT
2. AT THE SAME TIME MARC WILL LIKELY EVOLVE OR BE REPLACED
-INCORPORATE MARC AND EXAMPLES IN A MODULAR WAY AS MUCH AS POSSIBLE, SUCH THAT
THE WORKFLOW STANDS SEPARATELY (FROM MARC) AND CAN MORE READILY BE ADAPTED IN
FUTURE.
-BUILD IN TRAINING ON RDA, FRBR, AAP AND OTHER CONCEPTS AND FUNDAMENTALLY ALTER
THE APPROACH OF RESOURCE DESCRIPTION FROM DESCRIBING RECORDS TO DESCRIBING
METADATA ELEMENTS.
28. DON’T PANIC!
• MARC IS NOT COMPLETELY DISJOINT FROM LINKED DATA CONCEPTS
• LINKED DATA MAY WELL COME IN STAGES:
1. MARC (PRESENT)
2. MARC TRANSFORMED INTO RDF SO LIBRARY HOLDINGS CAN BE MADE VISIBLE ONLINE
(PRESENT/NEAR FUTURE)
3. LIBRARY METADATA NATIVE TO THE WEB (FUTURE )
• SO, WE NEED TO WORK WITH MARC IN SUCH A WAY BUILD FUTURE COMPATIBLE LIBRARY
METADATA!
30. CORE SERVICES
CUC / COLLECT *
Eresource License Management
Contract Management with selection,
acquisition and cataloguing service
providers
Research
ONTARIO COLLEGES LIBRARY SERVICE AND THE 24 ONTARIO
COLLEGES
OPT-IN SERVICES
Management of consortial ILS
(Symphony)
Remote Access
Federated Search
Video On Demand
askON Virtual Reference Service
Professional Services
31. ● Under the direction of the
CUCLDRSG, Ontario Colleges
Library Service manages and
maintains the College Union
Catalogue
● BSWG with the support of OCLS
maintains the minimum standards
for records being uploaded into the
union catalogue
● Various sizes and systems -
Symphony, Mandarin, Evergreen,
Voyager, Surpass Centriva
32. RDA has arrived.
Now what?
HTTP://LITTLELANTERNPRESS.COM/WP-
CONTENT/UPLOADS/2015/02/ROLLERSKATES.JPG
33. OUR INITIAL PROBLEM:
● INTRODUCTION OF RDA POSED CERTAIN TRAINING CHALLENGES
● ORIGINAL CATALOGUING MANUAL MARC DRIVEN -- AACR2
● HEAVY EMPHASIS ON DESCRIPTION AT MANIFESTATION LEVEL
● LINEAR, TEMPLATE DRIVEN WORKFLOW MADE IT DIFFICULT TO SUPPORT UNDERLYING
MODEL FROM WHICH RDA WAS BUILT
QUESTIONS WE ASKED OURSELVES:
1. COULD WE PROVIDE AN UPDATED MANUAL / WORKFLOW THAT WOULD HELP FRONTLINE STAFF FURTHER
UNDERSTAND AND ADOPT THE UNDERLYING FRBR MODEL FROM WHICH RDA WAS DEVELOPED?
2. OUR SYSTEMS ARE MARC 8. INSPIRED BY WORK DONE BY LC, COULD WE DEVELOP A MANUAL THAT SUPPORT A
FRBR BASED WORKFLOW WHEN THE EXISTING ENCODING ENVIRONMENT WAS LIFTED AWAY?
34. OUR JOURNEY:
● THINKING ABOUT CURRENT FRONTLINE CATALOGUING WORKFLOWS,
OUR INITIAL EFFORTS EXPLORED THE PATH OF DESCRIBING THE
MANIFESTATION IN HAND, THEN TRANSCRIBING ELEMENTS FOR WORK
AND EXPRESSION AND BUILDING APPROPRIATE RELATIONSHIPS
INITIAL INSPIRATION GUIDED CATALOGUER FROM MANIFESTATION TO
WORK & EXPRESSION:
● CAMBRIDGE,
● BRITISH LIBRARY AND THE
● PAN-CANADIAN WORKING GROUP ON RDA
35. AN EYE TO THE FUTURE:
● COULD WE PRESENT OUR WORKFLOW IN A WAY THAT WOULD HELP TO PREPARE US
FOR CATALOGUING IN LINKED ENVIRONMENTS?
● THE WEMI APPROACH WAS ADOPTED IN RECOGNITION OF ITS FUTURE POTENTIAL FOR
WORKFLOW ADVANTAGES IN LINKED ENVIRONMENTS
STEP 1: DESCRIBE THE WORK, CREATE AAP FOR WORK & RECORD RELATIONSHIPS
STEP 2: DESCRIBE THE EXPRESSION, CREATE AAPS FOR EXPRESSION & RECORD RELATIONSHIPS
STEP 3: DESCRIBE THE MANIFESTATION, CREATE AAPS FOR MANIFESTATION & RECORD
RELATIONSHIPS
STEP 4: ITEM
37. UPCOMING IMPLEMENTATION HURDLES:
● CURRENT CATALOGUE RECORDS HEAVILY DESCRIBE ELEMENTS OF
MANIFESTATION, AND BY THEIR VERY NATURE CAUSE US TO ‘KEEP OUR HEADS’ IN
THIS PARADIGM
● TEMPLATES/SYSTEMS/CODING ENVIRONMENTS CURRENTLY USED REINFORCE
LINEAR MARC DRIVEN APPROACH TO CATALOGUING
● PRE-CAT PROCESS OF CHECKING FOR CATALOGUING COPY CHECKS FOR
ELEMENTS OF MANIFESTATION -- THE CATALOGUER WILL NEED TO ‘SHIFT HIS
VIEW’ TO CONSIDER ELEMENTS OF WORK AND EXPRESSION AS THEY COMPLETE
DERIVATIVE CATALOGUING TASKS
38. BENEFITS:
● REGARDLESS OF ENCODING OR LINKING ENVIRONMENT ... WEMI WORKFLOW WILL PROMPT FRONTLINE
STAFF TO ASK THE BIG QUESTIONS UP FRONT AS THEY DESCRIBE RESOURCES. I.E., WHAT
RELATIONSHIPS ARE IMPORTANT AS I CATALOGUE THIS RESOURCE?
● WHAT RELATIONSHIPS THAT ARE IMPORTANT TO USERS AS THEY IDENTIFY AND SELECT INFORMATION
● EVENTUAL SHIFT FOCUS FROM TRANSCRIBING ITEM HAND TO BUILDING RELATIONSHIPS. TO EXPAND
ON SEEMAN & GODDARD -- CONCENTRATE ON ASPECTS OF LEGACY DATA THAT ARE “REUSABLE IN
LINKED DATA”
● BY BUILDING A WEMI WORKFLOW, WE ENCOURAGE CATALOGUERS TO THINK ABOUT AUTHORITIES AND
CONTROLLED ACCESS POINTS AT EVERY LEVEL
39. Welcome to the OCLS CATALOGUING
WORKFLOW!
HTTP://PHOTOS1.BLOGGER.COM/BLOGGER/1505/1307/320/A%20STACK
-OF-PAPERS.JPG
● Online + Print
● 10 Formats
Book
eBook
Serial
Electronic Serial
DVD
Streaming Video
CD, Audio
Streaming Audio
Websites
Software / Objects
Two Functions:
1. Process / Workflow
1. Reference / Training
40. PROCESS / WORKFLOW
● Step by step
● How to use guide for copy
cataloguing, derivative
cataloguing and original
cataloguing
41. PROCESS / WORKFLOW
● WEMI STRUCTURE AND ORDER
● EACH WEMI ELEMENT
REPRESENTS A STEP
● EACH WEMI ELEMENT HAS AN
INDEX
42. PROCESS / WORKFLOW
● EACH ELEMENT HAS A
CORRESPONDING LINK TO THE
RDA RULE IN THE TOOLKIT AND
THE MARC FIELD INSTRUCTION
● INDICATES WHETHER
THE ELEMENT IS
REQUIRED
● DEFINITION
● SOURCE OF
INFORMATION
43. PROCESS / WORKFLOW
● Step by step
how to record
with illustrative
examples
● Outline of any
OCLS policy
● Examples for
the pertinent
physical
formats and/or
special format
instructions
44. PROCESS / WORKFLOW
DIFFERENT ENTRANCE POINTS
Adapted from Business Mazes by Joni Farthing, Hart-Davis,
1981
● Linear Beginning to
End
● How to Use Guide
● MARC Index
47. WHAT DOES THIS MEAN FOR US?!
“CATALOGERS MUST CREATE DATA IN MARC THAT WILL ALLOW IT TO BE BATCH
PROCESSED INTO RDF AUTOMATICALLY WITH THE LEAST AMOUNT OF DIFFICULTY. HERE
AGAIN THEY CAN LOOK TO THE FUNDAMENTALS OF DATA QUALITY AND REQUIRE THAT THE
DATA PRODUCED DURING BATCH PROCESSING WILL BE DISCRETE, CONSISTENT, AND
SEMANTICALLY UNAMBIGUOUS.” (SEEMAN & GODDARD, 2015, P. 335)
1. OVERALL, FOCUS ON DESCRIBING RESOURCES WITH A NUMBER OF RELATED
ELEMENTS, RATHER THAN BIBLIOGRAPHIC RECORDS.
2. EMPHASIZE THE USE OF AUTHORIZED ACCESS POINTS
3. USE IDENTIFIERS WHENEVER POSSIBLE
4. LEVERAGE THE USE OF RELATIONSHIPS IN RDA AND MARC WHEREVER POSSIBLE
48. DESCRIBE ELEMENTS, NOT RECORDS
WHEN YOU BREAK SOMETHING DOWN TO COMPONENT PARTS, AND ENSURE THAT STANDARD
ESTABLISHED LINKS ARE USED TO CONNECT VARYING SETS AND PIECES, THE SKY IS THE LIMIT TO
THE FUN YOU CAN HAVE!
49. LET’S ASSUME THAT THE TRACK IN THIS PICTURE IS NAILED TO THE TABLE – THIS
CAN BE LIKENED TO CURRENT CATALOGUING PRACTICE. WE DESCRIBE OUR
“RECORDS” AS A WHOLE, SUCH THAT IT IS DIFFICULT TO PULL APART
COMPONENT ELEMENTS OR LINK OR PLAY WELL WITH OTHER METADATA SETS
OR STANDARDS.
50. RELATIONSHIPS, AAP & IDENTIFIERS
“THE CREATION OF AUTHORITIES FURTHERS THE CAUSE OF CREATING DIFFERENTIATED VALUES, AS UNIQUE TEXTUAL HEADINGS ARE CONSTRUCTED TO CLEAR
AWAY SEMANTIC AMBIGUITY AND MAKE DISTINCTIONS BETWEEN ENTITIES CLEAR.” (SEEMAN & GODDARD, 2015, P. 335)
THE OCLS CATALOGUING WORKFLOW EMPHASIZES THE USE OF AAP, IDENTIFIERS AND RELATIONSHIPS THROUGHOUT, BUT IN
PARTICULAR WE HAVE TRIED TO OUTLINE DESCRIPTION OF RELATIONSHIPS IN A MORE COMPREHENSIVE WAY.
LINKED DATA FOR LIBRARIES (HTTP://EXPERIMENT.WORLDCAT.ORG/ENTITY/WORK/DATA/1840249565)
HAS AUTHOR (HTTP://ID.LOC.GOV/VOCABULARY/RELATORS/AUT)
HOOLAND, SETH VAN (HTTP://ID.LOC.GOV/AUTHORITIES/NAMES/NO2014097600)
LINKED DATA FOR LIBRARIES → HAS AUTHOR → HOOLAND, SETH VAN
THIS IS STARTING TO LOOK LIKE A TRIPLE!
51. When the track changes, it would be best if our metadata and cataloguers
are prepared (We want outcome B)
A.
B.
52. ACKNOWLEDGEMENTS
MANY THANKS TO ALL THE AUTHORS OF THE OCLS RDA WORKFLOW AND FOR ALL THE SUPPORT FROM
HLLR, OCLS AND THE BSWG.
AUTHORS: IAN BIGELOW, STACEY BOILEAU, DANIELLE EMON, ROSINA LEUNG, MARINA MORGAN, IRENE
SILLIUS
SUPPORT: HEADS OF LIBRARIES & LEARNING RESOURCES (HLLR)
OWNER/ISSUING BODY: ONTARIO COLLEGES LIBRARY SERVICE (OCLS)
STANDARDS/APPROVING BODY: BIBLIOGRAPHIC STANDARDS WORKING GROUP (BSWG) / JOINT RDA
IMPLEMENTATION SUBCOMMITTEE (JRDA)
WITH ACKNOWLEDGMENTS TO DORIS RANKIN & SALLY PRESS FOR EARLY PROJECT CONTRIBUTIONS
53. BIBLIOGRAPHY
ALEMU, G., STEVENS, B., ROSS,, P., & CHANDLER. (2012). LINKED DATA FOR LIBRARIES: BENEFITS OF A
CONCEPTUAL SHIFT FROM LIBRARY-SPECIFIC RECORD STRUCTURES TO RDF-BASED DATA MODELS. NEW
LIBRARY WORLD, 113 (11/12), 549. doi:10.1108/03074801211282920
AMERICAN LIBRARY ASSOCIATION. (2010). RDA TOOLKIT. CHICAGO, ILL: AMERICAN LIBRARY ASSOCIATION.
RETRIEVED FROM HTTP://ACCESS.RDATOOLKIT.ORG/
CLARKE, R. I. (2015). BREAKING RECORDS: THE HISTORY OF BIBLIOGRAPHIC RECORDS AND THEIR INFLUENCE IN
CONCEPTUALIZING BIBLIOGRAPHIC DATA. CATALOGING & CLASSIFICATION QUARTERLY, 53(3/4), 286-302.
DOI:10.1080/01639374.2014.960988
COYLE, K. (2013, JULY 23). LINKED DATA FIRST STEPS & CATCH-21 [BLOG POST]. RETRIEVED FROM:
HTTP://KCOYLE.BLOGSPOT.CA/2013/07/LINKED-DATA-FIRST-STEPS-CATCH-21.HTML
HILARIO, A. B. R., FERNANDEZ, T.R. AND CAMPO, D.M. (2014). FROM BIBLIOGRAPHIC RECORDS TO DATA:
CHANGES IN THE LIBRARY ENVIRONMENT WITH THE APPLICATION OF LINKED OPEN DATA TECHNOLOGIES.
INFORMATION RESOURCES MANAGEMENT JOURNAL, 27.3 (JULY-SEPTEMBER 2014).
54. BIBLIOGRAPHY CONT’D
MCCALLUM, S. (2015). BIBFRAME UPDATE. Library of Congress. https://www.youtube.com/watch?v=0-
B0sUhGnKo
MILLER, E. (2014, DECEMBER). MOVING FROM MARC: HOW BIBFRAME MOVES THE LINKED DATA IN LIBRARIES
CONVERSATION TO LARGE-SCALE ACTION. PRESENTATION AT THE SEMANTIC WEB IN LIBRARIES
CONFERENCE, BONN, GERMANY. SLIDES RETRIEVED FROM
HTTP://SWIB.ORG/SWIB14/SLIDES/MILLER_SWIB14_57.PDF
SEEMAN, D., & GODDARD, L. (MAY 19, 2015). PREPARING THE WAY: CREATING FUTURE COMPATIBLE
CATALOGING DATA IN A TRANSITIONAL ENVIRONMENT. CATALOGING & CLASSIFICATION QUARTERLY, 53, 331-
340.
STAHMER, C. (2015). LINKED DATA IN THE LIBRARY WORKFLOW ECOSYSTEM.
https://www.youtube.com/watch?v=6MEyLLQshJY
SZETO, K. (2013). POSITIONING LIBRARY DATA FOR THE SEMANTIC WEB: RECENT DEVELOPMENTS IN
RESOURCE DESCRIPTION. JOURNAL OF WEB LIBRARIANSHIP, 7(3), 305-321. DOI:10.1080/19322909.2013.802584
55. MORE INFORMATION ON LINKED DATA INITIATIVES
FOR LIBRARIES:
• BIBFRAME HTTP://WWW.LOC.GOV/BIBFRAME/
• SCHEMA BIBEX HTTPS://WWW.W3.ORG/COMMUNITY/SCHEMABIBEX/
• OCLC LINKED DATA WEBSITE HTTPS://WWW.OCLC.ORG/DEVELOPER/DEVELOP/LINKED-
DATA.EN.HTML
• OCLC LINKED DATA RESEARCH HTTP://WWW.OCLC.ORG/RESEARCH/THEMES/DATA-
SCIENCE/LINKEDDATA.HTML
• WC3 LINKED DATA HTTP://WWW.W3.ORG/STANDARDS/SEMANTICWEB/DATA
• LIBHUB INITIATIVE HTTP://WWW.LIBHUB.ORG/
• LINKED DATA WEBSITE HTTP://LINKEDDATA.ORG/HOME
• ALIADA HTTP://WWW.ALIADA-PROJECT.EU/