本研究应用设计研究方法进行人机交互的设计,从而检验和精化设计及其交互原则.对所设计的人工制品及交互原则持续的修订过程包括,在实践中应用第一版的系统,观察系统的运行方式,以及基于运行结果持续修订设计和交互原则.本研究主要介绍了我们多年来开发在线学习情境感知活动通知系统的方法、经验和教训.“,”Design research in human-computer interaction uses successive implementatiorns of an innovation to test and refine designs ns well as the principles of interaction that the designs are based upon. This progressive refinement in the designed artifacts and the principles of interaction involves putting a first version of a system into practice to see how it works. Then, the design and the principles of interaction are successively revised based on findings. This report describes the approach, efforts and lessons learned from a multi-year effort to develop a context-aware activity notification system for online learning.