Ontology-Based Representation for Accessible OpenCourseWare Systems

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Elias, M.; Lohmann, S.; Auer, S.: Ontology-Based Representation for Accessible OpenCourseWare Systems. In: Information 9 (2018), Nr. 12, 302. DOI: https://doi.org/10.3390/info9120302

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/4283

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Sum total of downloads: 126

OpenCourseWare (OCW) systems have been established to provide open educational resources that are accessible by anyone, including learners with special accessibility needs and preferences. We need to find a formal and interoperable way to describe these preferences in order to use them in OCW systems and retrieve relevant educational resources. This formal representation should use standard accessibility definitions of OCW that can be reused by other OCW systems to represent accessibility concepts. In this article, we present an ontology to represent the accessibility needs of learners with respect to the IMS AfA specifications. The ontology definitions together with rule-based queries are used to retrieve relevant educational resources. Related to this, we developed a user interface component that enables users to create accessibility profiles representing their individual needs and preferences based on our ontology. We evaluated the approach with five examples profiles.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:Zentrale Einrichtungen

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 89 70.63%
2 image of flag of United States United States 20 15.87%
3 image of flag of China China 7 5.56%
4 image of flag of United Kingdom United Kingdom 2 1.59%
5 image of flag of Tanzania, United Republic of Tanzania, United Republic of 1 0.79%
6 image of flag of Taiwan Taiwan 1 0.79%
7 image of flag of Turkey Turkey 1 0.79%
8 image of flag of Sweden Sweden 1 0.79%
9 image of flag of Serbia Serbia 1 0.79%
10 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 1 0.79%
    other countries 2 1.59%

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