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Opening learner profiles
 

Opening learner profiles

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ICALT 2009 presentation

ICALT 2009 presentation

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    Opening learner profiles Opening learner profiles Presentation Transcript

    • Opening Learner Profiles across Heterogeneous Applications Triomphe Ramandalahy, Philippe Vidal, Julien Broisin Université Paul Sabatier Toulouse, France
    • Context ๏ Personalization of Web-based Learning Environments ๏ There is a need for collecting data about learning tools and resources, users and activities ๏ We focus on ACTORS, and specially LEARNERS ICALT 2009, July 16, 2009, Riga, Latvia 2
    • Issues to solve ๏ Learner profile: set of information related to a user or a set of users ๏ Various information describing learners from various points of view ๏ Information is distributed across heterogeneous systems and applications ICALT 2009, July 16, 2009, Riga, Latvia 3
    • Issues to solve ๏ Learner profile: set of information related to a user or a set of users ๏ Various information describing learners from various points of view ๏ Information is distributed across heterogeneous systems and applications ๏ How to gather the whole information characterizing a learner? How to share and reuse it? ➡Uniformely represent information to collect ➡Federate the various sources of information ICALT 2009, July 16, 2009, Riga, Latvia 3
    • Outline ๏ Existing approaches ๏ Our proposal ๏ A model dedicated to learner profile ๏ A service oriented architecture ๏ Conclusions and future works ICALT 2009, July 16, 2009, Riga, Latvia 4
    • Standardized approaches ๏ IEEE Personal And Private Information (PAPI - 2002) ‣ Personal information, competences, relations, portfolio, security, ... ๏ IMS Learner Information Package (LIP - 2005) ‣ Additional information such as history, preferences, affiliations or activities ICALT 2009, July 16, 2009, Riga, Latvia 5
    • Specific approaches ๏ Reuse of External Profiles (REPro) [Eyssautier 08] ‣ Date of birth, living place, school year, first year (or not) in this curriculum ๏ cosyQTY [Lazarinis 07] ‣ Personal information, objectives, knowledge, usage of the sytem ๏ ...and many more ICALT 2009, July 16, 2009, Riga, Latvia 6
    • Some lacks ๏ Low abstraction level ๏ No query language (or specific) ๏ No mechanism to exchange learner profiles between heterogeneous applications ICALT 2009, July 16, 2009, Riga, Latvia 7
    • Some lacks ๏ Low abstraction level ๏ No query language (or specific) ๏ No mechanism to exchange learner profiles between heterogeneous applications ๏ Nearly impossible to define additional information required for a specific learning application ๏ Very hard to share and reuse learner profiles ICALT 2009, July 16, 2009, Riga, Latvia 7
    • Outline ๏ Existing approaches ๏ Our proposal ๏ A model dedicated to learner profile ๏ A service oriented architecture ๏ Conclusions and future works ICALT 2009, July 16, 2009, Riga, Latvia 8
    • A model-driven approach... ๏ A UML-based modeling of learner profiles ‣ High abstraction level (extensibility) ‣ A core profile composed of several sub-profiles ๏ A system dedicated to the storage of learner profiles ๏ A service to modify/extend the learner profile ๏ A service to facilitate access to the dedicated storage system ICALT 2009, July 16, 2009, Riga, Latvia 9
    • ...based on an existing standard ๏ Reuse of the “de facto” Web-Based Enterprise Management (WBEM) standard elaborated by the Distributed Management Task Force (DMTF) ๏ Natively dedicated to system, network and application management ๏ The main advantages ‣ A Common Information Model (CIM) ‣ Some query languages (CQL and WQL) ‣ Some protocols to ensure communication between heterogeneous applications and systems ‣ Several open source implementations ICALT 2009, July 16, 2009, Riga, Latvia 10
    • Outline ๏ Existing approaches ๏ Our proposal ๏ A model dedicated to learner profile ๏ A service oriented architecture ๏ Conclusions and future works ICALT 2009, July 16, 2009, Riga, Latvia 11
    • The global learner profile ๏ Based on the existing CIM User model ICALT 2009, July 16, 2009, Riga, Latvia 12
    • A Technology Enhanced Learning (TEL) core profil ๏ To represent any TEL actor (learner, teacher, tutor, ...) ICALT 2009, July 16, 2009, Riga, Latvia 13
    • A core profil for learners ICALT 2009, July 16, 2009, Riga, Latvia 14
    • The cognitive sub-profile ๏ Integrates IMS LIP categories ICALT 2009, July 16, 2009, Riga, Latvia 15
    • The preference sub-profil ๏ Integrates interests, preferences and relationships ICALT 2009, July 16, 2009, Riga, Latvia 16
    • The identification sub- profile ๏ CIM User ๏ Additional information ICALT 2009, July 16, 2009, Riga, Latvia 17
    • The metacognitive sub- profile ๏ Various information specified by psychologists ICALT 2009, July 16, 2009, Riga, Latvia 18
    • Outline ๏ Existing approaches ๏ Our proposal ๏ A model dedicated to learner profile ๏ A service oriented architecture ๏ Conclusions and future works ICALT 2009, July 16, 2009, Riga, Latvia 19
    • The 3/3 architecture ICALT 2009, July 16, 2009, Riga, Latvia 20
    • The 3/3 architecture LEARNING ENVIRONMENT LEARNING SYSTEM 1 LEARNING SYSTEM 2 LEARNING SYSTEM N ICALT 2009, July 16, 2009, Riga, Latvia 20
    • The 3/3 architecture LEARNING ENVIRONMENT TRACKING ENVIRONMENT LEARNING WBEM TRACKING MANAGER SYSTEM 1 framework LEARNING SYSTEM 2 LEARNING TRACKING SYSTEM N ICALT 2009, July 16, 2009, Riga, Latvia 20
    • The 3/3 architecture LEARNING ENVIRONMENT INTERMEDIATE TRACKING ENVIRONMENT LAYER AGENT LEARNING WBEM TRACKING MANAGER SYSTEM 1 LEARNER framework PROFILE SERVICE AGENT LEARNING SYSTEM 2 MODEL PROFILE AGENT LEARNING SERVICE TRACKING SYSTEM N ICALT 2009, July 16, 2009, Riga, Latvia 20
    • Collecting the whole profile from various applications INTERMEDIATE LEARNING ENVIRONMENT TRACKING ENVIRONMENT LAYER LEARNING AGENT WBEM TRACKING MANAGER SYSTEM 1 LEARNER framework PROFILE SERVICE AGENT LEARNING SYSTEM 2 MODEL PROFILE AGENT VIS. SERVICE TOOL TRACKING ICALT 2009, July 16, 2009, Riga, Latvia 21
    • The profil visualization tool ICALT 2009, July 16, 2009, Riga, Latvia 22
    • Outline ๏ Existing approaches ๏ Our proposal ๏ A model dedicated to learner profile ๏ A service oriented architecture ๏ Conclusions and future works ICALT 2009, July 16, 2009, Riga, Latvia 23
    • Conclusions ๏ Standardized approach: WBEM is natively integrated within Microsoft and Linux operating systems ๏ The learner model ‣ High abstraction level (extensible) ‣ Integrates existing profils (IMS LIP, IEEE PAPI) ‣ Integrates metacognitive properties ๏ The management services ‣ Facilitate access to the tracking repository ‣ Make it easy to take into account additional information ‣ Promote sharing and reusing of learner profiles ICALT 2009, July 16, 2009, Riga, Latvia 24
    • Future works ๏ Experimentation with students of the Institute of Technology in computer science (should have been done this year but...) ๏ Automated extraction of users data enclosed within the WBEM component of Microsoft Windows XP and Vista ๏ Providing an intelligent helping system ‣ Detection of difficulty ‣ Analyse (data mining) ‣ Triggering contextual help ICALT 2009, July 16, 2009, Riga, Latvia 25
    • Questions? http://www.irit.fr/~Julien.Broisin broisin@irit.fr Thanks! ICALT 2009, July 16, 2009, Riga, Latvia 26