E-learning 2.0: you are We-LCoME
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Transcript of E-learning 2.0: you are We-LCoME
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E-learning 2.0: you are We-LCoME!
Stefano FerrettiSilvia MirriLudovico A. MuratoriMarco RoccettiPaola Salomoni
Department of Computer Science
Università di Bologna
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Summary
Introduction E-learning + Web 2.0 = E-learning 2.0 Our approach Our prototype:
Design issuesArchitectureUse case
Conclusions
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Introduction
E-learning:Standards (SCORM, IMS LIP, IMS
ACCLIP, IMS ACCMD, …)Platforms (Moodle, ATutor, Claroline, …)
Tools (E-mailing lists, Newsgroups, Whiteboards, Chats, Forums, Online presentations)
Actors (teachers, tutors, learners, …)
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Introduction
Accessible “traditional” e-learning:allows distance and flexible educational
activities decreases the risk of excluding
individuals with particular access capabilities
increases the social inclusion of non-typical learners
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Introduction
Web 2.0Open participation Data decentralizationAssembly from diverse sourcesFreedom to share and re-use Users’ Cooperation and CollaborationNew Applications and technologies (Blogs,
Wikis, Podcasting, Media sharing, …)
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E-learning 2.0
E-learning + Web 2.0 = E-learning 2.0new tools and methodologies to work as in
an on line communityLearning objects may be dinamically
created, aggregated, classified, syndicated and shared by each e-learning actor
Learner may become “prosumer” (consumer+producer)
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E-learning 2.0
If I hear it, I will forget it.If I see it, I will remember it. If I do it, I will understand it.
~Chinese Proverb
And what about if I collaborate?
Collective intelligence
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E-learning 2.0: accessibility
Dangers for accessibility may be embedded in every innovation
The complexity and the technologies of collaborative 2.0 tools represents a risk of exclusion for people with disabilities
The participation of people to the creation and management of contents is a great potential for e-learning accessibility
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E-learning 2.0: accessibility
Lecturers and learning technologies are charged with accessibility of “traditional” e-learning contents
New e-learning 2.0 methodologies and tools could be used to make accessible e-learning in practice, by supporting processes that engage all the different actors, from lecturers to students, including people with disabilities, join to work together
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Our approach
Exploit users’ contribution to cooperatively produce learning objects
Improve learning objects accessibility by allowing users to add textual annotations and alternative contents
Collaboration on the Web WikiWikitext used to produce HTML pagesNo rich media contents
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Our approach
No collaborative editing system available for multimedia contents
A wiki-like system neededTo add text-based data
CaptionsAnnotations
To add media data Contribution: collaborative system for
(multimedia) e-learning contents SMIL documents
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Our prototype
We-LCoME (Wiki e-Learning Compound Multimedia Environment) allows the cooperative creation and sharing of
SMIL-based multimedia resources makes each user able to create, add, modify,
delete each single media composing a didactical resourse and its alternatives
provides suitable workflows to bind users adding meta information about media contents and their accessibility
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Design issues
SMIL: allows to describe the spatial and temporal relations inside compound multimedia
DokuWiki: extended to allowaccessible collaborative editingenhanced wiki-syntaxaccessible SMIL and HTML documents
generation IMS ACCMD: Accessibility MetaData
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Actors and functions
phase 2: captioning
phase 3:add resources
contentrepository
editing system
adaptationsystem
Ac2
Ac3
client
We-LCoME
phase 1: add raw video
lecture
Ac1
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Architecture
Wiki
CONTENT ANALYZER
We-LCoME
Syntax Interprete
r
SMIL Parser
Adaptation System Web
Web Service
Web Service
Web Service
client Broker
ACCMD Manager
User Profile
DB
content repository
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Use case
1. The lecturer adds a video lecture
2. Elements are provided by the students support service staff and the teacher
3. Learners enjoy the lecture and spontaneously enrich it
4. The lecturer corrects and confirms the notes of the previous item of the list
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Adding Videolecture
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Adding Captions
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Adding Captions
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Adding Captions
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Adding Captions
$$0__$15 Good morning, my name is $$0__$15 Good morning, my name is Alessandro Amoroso, I am Alessandro Amoroso, I am professor of Computer Science professor of Computer Science at the University of Bolognaat the University of Bologna
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Adding Captions
$$0__$15 Good morning, my name is $$0__$15 Good morning, my name is Alessandro Amoroso, I am Alessandro Amoroso, I am professor of Computer Science professor of Computer Science at the University of Bolognaat the University of Bologna
SMIL file<textstream src="captions.rt" region="region_caption" …/>
captions.rt<Time begin="0:00:00.0" end="0:00:15.0"/><clear/> Good morning, my name is ...
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Adding Metadata
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Adding Metadata
<accessibility> <resourceDescription> <primary hasAuditory="true“ hasTactile="false“ hasText="false” hasVisual="false"/> </resourceDescription></accessibility>
<accessibility> <resourceDescription> <primary hasAuditory="true“ hasTactile="false" hasText="false“ hasVisual="false"/> <equivalentResource> http://www.criad.unibo.it/We-LCoME/file1.txt </equivalentResource> </resourceDescription></accessibility>
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Conclusions
We-LCoME aim is to mashup compound multimedia potentials with the “collective intelligence”
Final e-learning media contents represent a sort of added value, coming from the iterated process of noting and enriching contents.
We-LCoME provides a simple interface (based on the wiki way) to access each media of SMIL based video lectures.
A suitable interface is provided to manage the ACCMD metadata about the accessibility of added contents.
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Future Works
Improving the authoring interface spatial dimension of SMIL based video lectures tagging research content (tags and metadata)
Adaptation system: Sharing transcoding loads
Assessment: Wider group of user Longer period Evaluation of:
accessibility of didactical materialsavailability of didactical materialsmetadata