Kim Jang Hak, a section head at the Faculty of Distance Education, has proposed a new learning content model and a communication interface with interactivity and feedback structure considering the requirements and levels of learners while meeting the pedagogical requirements for distance education.
Generally, distance education system consists of three components, namely, learner, learning content and learning management system.
Learning-based interaction is mainly of three types, i.e. learner-content, content-management system and learner-management system.
Learning content consists of a content object and an interaction object with communication interface. The content object is Sharable Content Object (SCO) for teaching activities like lecture, experiment, practice, etc. The interface object is for interaction with learners through the communication interface and standardized communication with the management system.
If the structure of content is properly defined and standardized for interaction and feedback control, the reusability, extension and inter-operability of content can be ensured and it can be used in other management systems. The design of the content in hierarchical structure allows reuse of some of the content object in other contents.
On the basis of SCORM, the content model and learning object metadata are defined in the figure above. In the figure, “organization” is a learning unit and “item” is learning resources. “Resource” is a reference set, that is, SCO or asset of minimum unit. The root folder of the content has index.html, imsmanifest.xml, XSD and DTD, metadata.xml and resources. The content model is in imsmanifest.xml and metadata files.
Finally, he managed to form the content by adding communication interface with four control objects for interactivity and feedback control to the content model in hierarchical structure. The communication interface is made up of display control object, learning control object, communication control object and evaluation control object.
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