CAJ | 학술논문

网络教学平台作为在线学习的基础性技术平台，支持着远程教学、多种在线学习活动和非正式学习的发展。在当前环境下，单一封闭的系统平台很难凭借自身力量满足教师和学习者多元化的教学设计和学习支持要求，缺乏可扩展性制约网络教学平台的发展。可扩展性是指软件系统扩展新功能的能力和容易程度。研究网络教学平台的扩展机制对于教育系统开发、学习工具应用、平台价值提升、个人学习环境建构等具有积极意义。对扩展性的分析可以从两个角度展开：面向集成的平台扩展与面向开放的平台扩展。面向集成的扩展方式主要使用Web组件、IMS LTI和模块开发等方式，面向开放的平台扩展主要通过开放API方式实现。不同扩展方式在教学支持、技术特征、标准规范等方面具有不同的特点。对网络教学平台的扩展性设计应在符合通用设计准则的基础上，从教学、功能、技术、环境等角度综合思考。
망락교학평태작위재선학습적기출성기술평태，지지착원정교학、다충재선학습활동화비정식학습적발전。재당전배경하，단일봉폐적계통평태흔난빙차자신역량만족교사화학습자다원화적교학설계화학습지지요구，결핍가확전성제약망락교학평태적발전。가확전성시지연건계통확전신공능적능력화용역정도。연구망락교학평태적확전궤제대우교육계통개발、학습공구응용、평태개치제승、개인학습배경건구등구유적겁의의。대확전성적분석가이종량개각도전개：면향집성적평태확전여면향개방적평태확전。면향집성적확전방식주요사용Web조건、IMS LTI화모괴개발등방식，면향개방적평태확전주요통과개방API방식실현。불동확전방식재교학지지、기술특정、표준규범등방면구유불동적특점。대망락교학평태적확전성설계응재부합통용설계준칙적기출상，종교학、공능、기술、배경등각도종합사고。
Being the basic technology platform for online learning, the web-based instructional platform supports the development of distance education, various online learning activities and informal learning. In the current environment, a single closed-system can hardly meet diversified requirements of instructional design and learning support, since the absence of extensibility would restrict the development of web-based instructional platform. Extensibility is the ability and usability for software systems to extend new functions. To study the extension mechanism has positive significance for instructional system development, learning tools application, system value enhancement and personal system environment construction. The extensibility can be analyzed from two aspects: integration-based and open-based. Integration-based extension mode includes web widget, IMS LTI and SDK development. Open-based extension mode is primarily through open APIs. Each extension mode has different features of teaching support, technical characteristics and standard specification. The design of extensibility should follow universal instructional design principles and be analyzed from aspects of instruction, function, technology and environment.