Graz University of Technology                      The World of Widgets – An                      Important Step Towards a...
Graz University of Technology      http://ple.tugraz.at    Mashup      of    widgets,     Ebner, Taraghi, Altmann       U2...
Graz University of Technology                                          HCI Tests            -    Heuristik Evaluations    ...
Graz University of Technology                                      Usability and UX           - Personalization in foregro...
Graz University of Technology                                Interviews & Questionnaires           - PLE Concept (What)   ...
Graz University of Technology                                                 Selection Mechanisms*         Stabilizing Se...
Graz University of Technology                                                      r/K Selection Theory*               Tra...
Graz University of Technology                                                  Variations                  Shift in genoty...
Graz University of Technology                                    Selections and Variations     - Following r/K strategy to...
Graz University of Technology                                Implicit / Explicit Knowledge     - Tracking module helps    ...
Graz University of Technology                                    Tracking module in PLE                 -Tracks users’ beh...
Graz University of Technology                                    Ubiquitous PLE     - A step towards more personalization ...
Graz University of Technology         Ebner M., Taraghi B., Altmann T.                                    Personal Learnin...
Graz University of Technology             http://twitter.tugraz.at           Slides available at: http://www.slideshare.ne...
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The World of Widgets – An Important Step Towards a Personalized Learning Environment

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Presentation at PLE Conference, Southampton, 2011

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The World of Widgets – An Important Step Towards a Personalized Learning Environment

  1. 1. Graz University of Technology The World of Widgets – An Important Step Towards a Personalized Learning Environment Martin Ebner, Behnam Taraghi, Thomas Altmann, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 1
  2. 2. Graz University of Technology http://ple.tugraz.at Mashup of widgets, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 2
  3. 3. Graz University of Technology HCI Tests - Heuristik Evaluations - Thinking Aloud Tests - Expert Test Users - Test Users from Different Field of Studies - Technical and non-technical fields - Interviews & Questionnaires, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 3
  4. 4. Graz University of Technology Usability and UX - Personalization in foreground - E.g. own desktop background image, look & feel etc. - Different UI structures & themes - Total control of own environment is desired! - Resemblance btw. Real and virtual world - More than one Personal Desktop vs. An unlimited Desktop - Free widget arrangement on UI - Flexible widget dimensions - Drag & Drop effects vs. simple clicks - Sharing, collaboration, networking - Ubiquitous PLE - Mobile and desktop views, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 4
  5. 5. Graz University of Technology Interviews & Questionnaires - PLE Concept (What) - Unknown to all test users - PLE Workflow (How) - Not easy to get started with - Due to unfamiliar concept - Introduction, tutorials for novel users strongly recommended - PLE Competences - Self-organization - Self-cognition - …. A Change from Teacher-Controlled to Coaching needed!, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 5
  6. 6. Graz University of Technology Selection Mechanisms* Stabilizing Selection: - Favorites the average. - Decrease of variability within the population. *Solbrig O.T. (1970). Principles and Methods of Plant Biosystematics. The Mac-Millan Company. Collier-Mac Millan Limited, London. *Solbrig O.T. & D.J Solbrig. (1979). Populationbiology and evolution. Addision-Wesley. Publ. Co. Reading Mass., Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 6
  7. 7. Graz University of Technology r/K Selection Theory* Tradeoff btw. quantity & quality of offspring In long term K-strategy is superior. Quality succeeds in long run over quantity. r-Strategy (quantity) - Succeeds in unpredictable, unknown environments. - High reproduction rate – short lifespan K-Strategy (quality) - Succeeds in predictable, known environments. - Constant growth, ruled by population density & env. capacity - Usually close to the max. capacity - Slower adaptation – longer lifespan In PLE a mixed approach is applied. *Pianka E.R. (1970). On r and K selection. American naturalist 104, 592-597. *MacArthur, R. and Wilson, E.O. (1967). The Theory of Island Biography, Princeton University Press (2001 reprint)., Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 7
  8. 8. Graz University of Technology Variations Shift in genotypes or generic sequence - Mutation: - Random process aiming at generation of new alternatives - Ex. change in DNA structure - Continuously happening The Evolution never stops. In PLE: slight update of existing functionality or UI - Recombination: - Not random process - Combining & distributing genetic materials (DNA, RNA) In PLE: combining widgets to build new ones, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 8
  9. 9. Graz University of Technology Selections and Variations - Following r/K strategy towards stabilizing selection - Producing quantitative widgets - Increasing the quality - Mutation - slight update of the functionality and UI - Recombination - Combining two widgets to build new functionalities - Combining code of different widgets to build new ones - Using IWC to realize new use cases - Widgets are developed by users - According to their needs and interests, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 9
  10. 10. Graz University of Technology Implicit / Explicit Knowledge - Tracking module helps - To get knowledge about user behavior - To get user preferences - To categorize different user groups - Improve the PLE with variations & selections - Implicit feedback for a recommender system within PLE - Missing qualitative data - Qualitative rating system is needed in PLE - Small feedback questionnaire for each widget - Explicit feedback system, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 10
  11. 11. Graz University of Technology Tracking module in PLE -Tracks users’ behavior on widgets - Deep retrieve of statistics data - Frequency of widgets usage - Features used in each widget - Realized via IWC - App. 1000 users registered up to now. - App. 30% active users - Top 5 most used widgets out of 30: - tugWidget, tccourses, tugllBlogs, mail, changeThemeColor - Top 5 most activated widgets: - weatherForcast, RSSReader, twitter, TUGLibrary, leoDictionary - weatherForcast & newsgroup are improved according to K-strategy Most activated widgets are not necessarily most used ones, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 11
  12. 12. Graz University of Technology Ubiquitous PLE - A step towards more personalization - Every where, every when - Mobile PLE - Smart phones (on roadmap) - Desktop PLE - Windows 7, Mac OS X (ongoing work) - (W3C => Desktop) Widget converter, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 12
  13. 13. Graz University of Technology Ebner M., Taraghi B., Altmann T. Personal Learning Environment - Graz University of Technology PLE Web View => Desktop Widgets, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 13
  14. 14. Graz University of Technology http://twitter.tugraz.at Slides available at: http://www.slideshare.net/mebner Slides available at: martin.ebner(at)tugraz.at http://elearningblog.tugraz.at SOCIAL LEARNING SOCIAL LEARNING Computer and Information Services Graz University of Technology http://elearning.tugraz.at http://tugraz.at Graz University of Technology Martin Ebner http://elearningblog.tugraz.at m ebn er http://elearning.tugraz.at, Ebner, Taraghi, Altmann U2X-4-PLE, 11.07.2011 14

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