【摘 要】 This article would explore the preservation of electronic documents original on teaching information management, and proposed the corresponding technical measures and management measures, and use yaahp level software to analyze. At the same time, thi... 更多 >> This article would explore the preservation of electronic documents original on teaching information management, and proposed the corresponding technical measures and management measures, and use yaahp level software to analyze. At the same time, this article would introduced the sort and selection of the best for technical measures which can ensure the electronic document\'s primitiveness. Then we can get the conclusion that the prevent edit again measures is the best measures. Moreover, it is help for the electronic certificates safe as well as the management of information file in practical teaching. << 收起