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Task-oriented approach to information handling
supportwithin web-based
education Lora M. Aroyo
15 November 2001
The “WWW invasion” in education
Growing amount of informationLack of adequate support Missing link between the students and instructorsFinding and validating relevant educational information
Looking for a solution
methods to support both students and instructorsinformation handling tasks:
searching for relevant information on a certain topicsapplying information for course tasksvisualization, organizing, structuring and maintainingvalidating information
Aims of the research
investigate the problems related to user-oriented and context-based information handling within Web-based education propose an approach for efficiently managing course-related information resourcesincreasing personal satisfaction and performance of students and instructors in their course-related tasks
Support areas for information handling within web-based
education Mapping toolsKBSIRSVisualisation tools
Support areas for information handling within web-based
education
From the aims to AIMS
AIMS – Agent-based Information Management System AIMS method – indirectly guiding and assisting both students and instructors in performing their course related activitiesAIMS tool – facilitating students and instructors with techniques to apply AIMS method and this way to achieve higher course performance
AIMS Metaphor
Proposed approach
interactive user-oriented system task-based search conceptual visualisation flexible agent-based architecture
Software Agents
Information Visualization
Mapping Approaches
Information Retrieval
Constructivist Theory
Information Processing
Theory
Experiential Learning
Lateral Thinking
Informational Education Support
Proposed approach (2)
A three dimensional scheme is constructed in order to link all the aspects of the proposed solution for information handling support within the context of web-based education - ATP Model (Approach-Technology-Process):
Visualisation techniques Semantic information modelling Intelligent support for cognitive processes
3A
3T
3P
AIMS problem domain
AIMS Global Information Model
AIMS Global Information Model
Domain model - defines the subject-domain ontology by means of a concept map (CM) of domain concepts with links between them
– domain concepts - linked to documents with weight indicating the relevance – domain concept - component of the user model as an overlay on the domain CM
Library model - provides means for maintaining a collection of information items related to different courses and domains - course materials and domain-related documents together with their characteristics
– library documents - domain terms, course tasks and topics – document - component of the user model as an overlay on the library documents
Course model - defines the structure of a course: course topics and tasks– task is represented in terms of domain concepts: includes task description,
prerequisites, and task status
Learner model - represented in terms of course tasks, domain concepts, and library documents: an overlay on the subject domain CM and course and library models; open model, built jointly by the user and the system
AIMS agent hierarchy
AIMS distributed architecture
Client-Server view on AIMS communication
stack
AIMS student environment
AIMS instructor domain environment
AIMS instructor library environment
AIMS instructor course environment
AIMS admin environment
AIMS Experiments
Preliminary studies - visualisation
Concept mapping study Pilot user interface and main
functionality experiments Main experiment – learning
outcomes, user interface and functionality
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