TAILIEUCHUNG - Lecture Notes in Computer Science- P97

Lecture Notes in Computer Science- P97:This year, we received about 170 submissions to ICWL 2008. There were a total of 52 full papers, representing an acceptance rate of about 30%, plus one invited paper accepted for inclusion in this LNCS proceedings. The authors of these accepted papers | Ontology-Based Description of Learning Object 469 many researchers focus on the description about LO. There are also many standards about learning object metadata however the metadata is not enough in fact. The metadata just provides some descriptions of LO s properties it is lack of reasoning capability and reusing capability we will discuss in detail in Part 3. In this paper the authors pay more attention to the ontology driven description of LO. At last this paper presents the approach to build learning object ontology. The benefits of such approach are increasing the share and reuse abilities of Learning Object. 2 Learning Object Educational content on the Web is often called Learning Object terminological today. Although the Learning Object is accepted widely the discussion about its definition still remains. So far there isn t a generally accepted definition within the learning object community. Definitions and Characters of Learning Object What are learning objects There are three prominent characterizations 2 Modular digital resources uniquely identified and meta-tagged that can be used to support learning National Learning Infrastructure Initiative Any digital resource that can be reused to support learning David A. Wiley Any entity digital or non-digital that may be used for learning education or training LTSC IEEE Learning Technology Standards Committee . All these definitions seem to be different formally but they describe the inherent characters of learning object. Share and Reuse All of the researches regard reusability as the core of learning object. Other characters are set to serve reusability. From the standpoint of learning object reusability it would be advantageous for learning object to have many different uses so that expensive multimedia content elements could be reused in as many different learning objects as possible 3 . Learning object can t be reused widely unless it can be shared. Share is a keyword and a core problem when we

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