This document proposes combining linked open data and mobile devices to improve access to open courseware (OCW). It introduces OCW and the benefits of linked data and mobile technologies for education. An architecture is presented for a mobile application that uses a SPARQL endpoint and triplestore to retrieve and display linked OCW data. A proof-of-concept mobile app is demonstrated that allows browsing OCW courses stored as linked open data. The document concludes that linking educational resources with metadata and making them available through mobile apps can enhance the user experience of accessing open educational content and resources.

1. Combining Linked Data
and Mobiles Devices to
improve access to OCW
N. Piedra, J. Chicaiza, J. López
Universidad Técnica Particular de Loja,
Loja, Ecuador
E. Tovar
Universidad Politécnica de Madrid, UPM
Madrid Spain
O M Bonastre
Universidad Miguel Hernandez,
Elche, Spain
IEEE EDUCON 2012, Marrakesh

2. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Introduction
Most of the Web content is
designed for human
consumption and stored in a
human-understandable but
not machine-readable format.

3. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Introduction
Consequently, the classical
Web -a Web of Documents-
is evolving toward a new and
promising model called
Semantic Web.

4. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Introduction
Philosophy of GICAC (Group of Innovation in the
Quality Management of Higher Education
Institutions – UPM, Spain & UTPL, Equator):
Deploying Linked Open Data -particularly data of open
educational materials- concerning universities,
repositories, people, Open Educational Resources (OER)
and Open Course Ware (OCW) from existing institutional
repositories and databases, under OCW UNIVERSIA
Consortium.

5. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Mobiles and Education
New features of mobile devices
promote creation of sites called
Markets / Store
Applications designed for mobile
devices can take advantage of other
incorporated features (camera,
microphone, GPS, WIFI, etc.)

6. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Mobiles and Education
The influence of these
devices in education has
allowed the term "Mobile
Education or Mobile
Learning”

7. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Context
Open Educational Content
and OpenCourseWare
Universia and the
OpenCourseWare Consortium

8. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Context

9. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Context
Using Linked Data in the OCW Context
To improve discovery,
accessibility, visibility and
interoperability

10. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Context
Using Linked Data in the OCW Context
Active role of Linked Data in the OCW context.
Current implementation of linked data in open
educational contents as Linked
OpenCourseWare Data Vocabulary (LOCWD)

11. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Context

12. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Context
LOCWD triplestore contains RDF data of OCW
courses published by OCW-Universia network
member countries sifting through a total of 1595
OCW courses. The data model is divided into
subdomains
• OCW repository properties
• OCW properties
• License properties
• Link to datasets of interest in the LinkedOpenData
cloud.

13. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Architecture for
LOCWD-Mobile
LOCW D- Mobile Architecture S erver
RESTful web service -
SPARQL end point
Client
'HTTP'REST'
OCW Users: View Controller Model
Teachers, Students
and Self-learners
The'view'is'
implemented'as'a' The'model'manages'
Listens for
tree'of'subclasses'of' events the'behavior'and'data'
the'View'class 2 3 of'the'APP'domain. 4
ViewGroup
event queue Content Provider LOCWD LOERD LUD
Linked Open Linked
Course Ware Linked OER
Data Data Universities
The'controller' Data
1 View ViewGroup interprets'the'user'
inputs,'translates' RDF'vocabularies
external'actions'into'
events'that'are'enqueued' RESTful LOCWD
View View View Web services SPARQL endpoint
and'then'passed'into'the' RDF'data
model''informing'the' SQLLite'to'manage'
Ways'for'user'interaction:' 1) data binding to the model, model'and/or'the' the'remote'data'as'
touch,'gestures,'type,'talk,' 2) sending messages to the
sensors,'and'so'on. controller, and 7 view'to'change'as' 6 local'data'in'Android' 5
3) handling messages from the appropriate. applications Triplestore
controller
RDF converter DataDroid Lib Linked OpenCourseWare
KeyEvent
DataSet - LOCWD
send'and'receive'messages URIs'for'OCW'things
RDF'for'describe'resources
Links'to'other'LOD'M'things'

14. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
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Architecture for
LOCWD-Mobile

15. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
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Proof-of-concept

16. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Proof-of-concept

17. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Proof-of-concept

18. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
EDUCON 2012
Conclusions
Benefit of Combination of Linked Data and mobile devices
The mobile devices could produce OER's (with audio, video,
photos, recommendations, etc.) and stored it in semantic
repositories.
The users of mobile applications can improve User Experience by
consuming semantically enriched information and linked data.

19. Combining Linked Data and Mobiles Devices to improve access to OCW, IEEE
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Acknowledgment
eMadrid Network of Excellence
S2009 TIC-1650. Comunidad de
Madrid, Spain
National Secretary of Sciences and
Technology (SENESCYT). Republic
of Ecuador