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基于本体的可进化学习对象设计
引用本文:何文洁,李庭. 基于本体的可进化学习对象设计[J]. 贵州大学学报(自然科学版), 2010, 27(6): 106-112
作者姓名:何文洁  李庭
作者单位:河海大学,江苏,南京,210098;南京大学软件学院,江苏,南京,210093
摘    要:学习对象规范代表并引导着学习对象的发展方向。从IMS Common Cartridge数字化学习内容封装规范及LETSI通用核心模型Core SCORM来看,学习对象呈现出分布式共享、细粒度重用、对生成性信息自动聚合等发展趋势。基于这种趋势,提出了可进化学习对象。本文对可进化学习对象的结构及特性进行了分析,采用本体作为其语义信息表示的通用框架,借助于OWL描述,设计了可进化学习对象自然生长、聚合、裂变的进化模型,为异构信息系统中ELO互操作提供了理论依据。

关 键 词:学习对象  可进化学习对象  本体  互操作  重用

Design of Evolvable Learning Object Based Ontology
HE Wen-jie,LI Ting. Design of Evolvable Learning Object Based Ontology[J]. Journal of Guizhou University(Natural Science), 2010, 27(6): 106-112
Authors:HE Wen-jie  LI Ting
Affiliation:1.Hohai University,Nnanjin 210098,China;2.Institute of Software,Nanjing University,Nnanjing 210093,China)
Abstract:The trends in the development of learning object were showed and conducted by learning object Specifications.New requirements including distributed resource sharing,reusing resource in fine granularity,aggregation of generative information had been Seen form IMS Common Cartridge content package and LETSI Core SCORM.Based on those changes,"evolvable learning object(ELO)" had been proposed.In this paper,the architecture of ELO had been designed and the functional characteristics of ELO had also been summarized.Additionally,ontology had been used as a semantic framework in ELO presentation.In order to illustrate the ELO evolutionary process including natural growth,aggregation as well as decomposition,both the Evolutionary Models and the program writing in OWL language were elaborated in detail.So,It can be concluded that the interoperation of ELO in distributed information system can be achieved based on the proposed Evolutionary Models.
Keywords:learning object  evolvable learning object  ontology  interoperate  reuse
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