Post on 04-Jan-2016
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Teaching-Material Design Center An ontology-based system for
customizing reusable
Source: Computers and Education, Vol.46, Issue: 4 , May, 2006 , pp. 458-470
Author: Wang, Hei-Chia; Hsu, Chien-WeiDate: 2006/03/07Speaker: MeiYu Lin
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outline
IntroductionArchitecture of TMDCExperiment and ResultsConclusions
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Introduction_1/4
Purpose Reusing e-material from different providers and
integrating them for a particular course Semantic metadata, following the SCORM Content
Aggregation Model Searching method
For document Keyword search Full text search
For content Ontology search Thesaurus search
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Introduction_2/4
SCORM_1/2 Sharable Content Object Reference Model characteristics:
Accessibility, Interoperability, Durability, Reusability
Content Aggregation Model
Run-Time Environment
Overview Sequencing and Navigation
Sequencing Information & Behavior (from IMS)
IEEE API 1484.11.2
IEEE Data Model 1484.11.1
Meta-data (from IEEE LOM 1484.12)
Content Structure (derived from AICC)
Content Packaging (from IMS)
Sequencing Information (from IMS)
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Introduction_3/4
SCORM_2/2 Content Aggregation Model: like content structure
Content OrganizationContent Aggregation
Resource(Asset)
Organization
I tem
Item
Item
Item
Item
Resource(Asset)
Resource(Asset)
Resource(Asset)
Resource(Asset)
Resource(SCO)
Resource(SCO)
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Introduction_4/4
Ontology Classes Properties Individuals/Instances
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Architecture of TMDC_1/5
TMDC: Teaching-Material Design Center Four module
Teaching material repository module Course database module Ontology module Course authoring module
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Architecture of TMDC_2/5
Teaching material repository module preserves and manages learning objects
Course database module preserves the teaching material structure that has been developed
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Architecture of TMDC_3/5
Ontology module_1/2 2 ontologies
course ontology: describe the term relations among course topics
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Architecture of TMDC_4/5
Ontology module_2/2 2 ontologies
content ontology: describes the relations among learning objects in a material
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Architecture of TMDC_5/5
Course authoring module Step 1: Select course domain. Step 2: Describe the goal of teaching material. Step 3: Refer to similar courses. Step 4: Choose the course table of contents. Step 5: Design the teaching template. Step 6: Confirm the course outline. Step 7: Choose the content of teaching material. Step 8: Revise the content.
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Experiment and Results 1/4
Participants 30 postgraduate students who had been sectio
n tutors of the “Network Management” course used the TDMC system to design teaching mat
erial and compared it with the method they had used
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Experiment and Results 2/4
Experiment1
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Experiment and Results 3/4
Experiment2_1
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Experiment and Results 4/4
Experiment2_2
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Conclusions
Developed TMDC systemgive the provider and consumer a conveni
ent environment for producing and selecting teaching material