an adaptative framework for tracking web–based learning environments
DESCRIPTION
Presentation at the EUAM Workshop in Lübeck, Germany - September 28, 2009TRANSCRIPT
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
An adaptative framework for An adaptative framework for tracking Web-based Learning tracking Web-based Learning EnvironmentsEnvironments
Valentin Butoianu, Phillipe Vidal, Julien Broisin
Institut de Recherche en Informatique de Toulouse, France{butoianu, vidal, broisin}@irit.fr
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
ContextContextMass personalization
◦Students: adapt learning scenarios to each user
◦Instructors and designers: adapt their courseware to various users’ learning paths
=> Need to collect a large amount of attention metadata from Web-based Learning Environments
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Research issuesResearch issuesExisting tracking systems
◦Students’ online activities within LMS◦Discussion forums◦Chat, instant messaging, …
Main drawbacks:◦Specificity ◦Attention metadata enclosed into
systems being traced Prevents attention share, thus mass personalization
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• Uniform representation of attention metadata• An architecture promoting the share and reuse of attention metadata
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
PlanPlan
1.Uniform representation
2. An opened and distributed architecture
3.Experimentation with Learning Objects
4.Conclusions and future works4
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Our approach Our approach Model based approach to
represent attention metadata produced by various learning systems◦High level of abstraction◦Extensible
Reuse of WBEM, a « de facto » standard proposed by DMTF
Dedicated to the network, systems and applications management.
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Modeling systems and Modeling systems and resourcesresources
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Modeling users’ activitiesModeling users’ activities
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
PlanPlan
1.Uniform representation
2. An opened and distributed architecture
3.Experimentation with Learning Objects
4.Conclusions and future works8
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Architecture Architecture
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LEARNING ENVIRONMENT TRACKING ENVIRONMENT
TRACKINGREPOSITORY
TR
AC
KIN
G M
AN
AG
ER
Learning Application 1
Learning Application 2
Learning Application 3
Management Application
SOAPHTTP
SOAPHTTP
MIDDLEWARE
SOAPHTTP
SO
AP
INT
AG
EN
TA
GEN
TA
GEN
T
SO
AP
INT
SO
AP
INT
SO
AP
INT
TR
AC
KIN
G
SER
VIC
E
WB
EM
IN
TER
FA
CE
SO
AP
INTER
FA
CE
MO
DEL
MA
NA
GEM
EN
T
SER
VIC
E
SO
AP
IN
TER
FA
CE
WB
EM
IN
TER
FA
CE
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Model management Model management serviceserviceDedicated to attention classesEasy specialization of generic
models to represent any attention data◦Define new classes and/or properties◦Modify or delete existing classes and/or
propertiesRules:
◦Apply to classes inheriting only from the generic models
◦Deny modifications of the generic models
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Tracking serviceTracking serviceDedicated to attention instancesSetTrace method: self-adapt to the
evolution of the model by creating a XML Schema conform to the model.
GetTrace method: explores the tracking repository in order to get an unified view of all attention metadata
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This methods are self-adapting to the attention model
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
PlanPlan
1.Uniform representation
2. An opened and distributed architecture
3.Experimentation with Learning Objects
4.Conclusions and future works12
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Modeling specific systems and Modeling specific systems and resources resources
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Learning objects’ Learning objects’ activitiesactivities
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Specific architectureSpecific architecture
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LEARNING ENVIRONMENT TRACKING ENVIRONMENT
TRACKINGREPOSITORY
TR
AC
KIN
G M
AN
AG
ER
Management Application
SOAPHTTP
SOAPHTTP
MIDDLEWARE
SOAPHTTP
SO
AP
INT
AG
EN
TA
GEN
T
SO
AP
INT
SO
AP
INT
TR
AC
KIN
G
SER
VIC
E
WB
EM
IN
TER
FA
CE
SO
AP
INTER
FA
CE
MO
DEL
MA
NA
GEM
EN
T
SER
VIC
E
SO
AP
IN
TER
FA
CE
WB
EM
IN
TER
FA
CE
OPENPEGASUS
Learning Application 1
Learning Application 2
gSOAP
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Use case: Consultation of a LO Use case: Consultation of a LO from Moodlefrom Moodle
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Moodle Tracking service
Tracking manager
Tracking repositor
y
1.Request model classes2.Return model classes
3.Build XML Schema4.Consult
document
5.Build XML trace
6.Send XML trace
7.Validate XML trace
8.Build CIM Instances9.Send CIM
Instances10.Insert instances into repository
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
PlanPlan
1.Uniform representation
2. An opened and distributed architecture
3.Experimentation with Learning Objects
4.Conclusions and future works17
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Conclusions and future Conclusions and future worksworksA framework to manage attention
metadata◦ Integrated within ubiquitous operating systems
(Windows XP, Linux)◦ Easy to satisfy multiple objectives: model
management service◦ Facilitates share and reuse :
Externalisation of attention metadata Self - adapting tracking service
Automated update of agents according to the model
Use Manager to Manager communicationExploit the collected traces: intelligent
tutoring systems, recommendation systems
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
QuestionQuestionss
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