学习分析技术规范比较研究

Comparative Research on Technical Specifications of Learning Analytics

With the increasing impact of big data technology on education， learning analytics technology based on big data has gradually been applied in education， which has a profound impact on the reform of education， the decision making of education management and education evaluation. At present， however， all kinds of learning systems and platforms have their own data format and models in data acquisition， analysis ， processing and display， which hinders the popularization and application of learning analytics technology. In order to deal with this problem ， it is very urgent and necessary to carry out an international comparative study of learning analytics technology， to fully grasp the characteristics and shortcomings of the existing norms， so as to help develop our own standards. Based on the concept of learning analytics ， this paper introduced the analysis model ， analysis methods and tools of learning analytics technology， analyzed the learning analytics technology specification drafted by three standards organizations， ADL， IMS and ISO/ !EC， and summarized the learning analytics technology specifications from the processes of data recording and storage， learning activity model and transmission mechanism. Then ， the paper makes a detailed comparison and analysis of the differences and internal relations between current international mainstream Caliper Analytics and xAPI learning and analysis technical specifications from four aspects: data model， service inteiface and security transmission mechanism， standard mapping relationship， and application system category. Finally， from the four aspects of accelerating education reform， promoting learners ， development， unifying basic data and technical specifications ， and strengthening institutional constraints ， the paper analyzed the important impact of learning analytics technology on education informationization and the problems promoting the analysis in the application of learning ， in order to provide a reference for learning.