A thesis Submitted in partial fulfillment of the requirements for the degree of Master of Engineering puter Science and Technology Graduate School of National University of Defense Technology Changsha,Hunan, November,2011 国防科学技术大学研究生院工学硕士学位论文 目录 摘要................................................................................................................. i ABSTRACT ......................................................................................................... ii 第一章绪论...................................................................................................... 1 研究背景......................................................................................................... 1 面向 Web 应用的失效检测研究背景................................................... 1 面向 Web 应用的失效检测在数字化校园中的应用前景................... 2 提高 Web 应用可用性的关键技术................................................................ 2 提高 Web 应用系统高可用性的硬件关键技术................................... 3 提高 Web 应用系统高可用性的软件关键技术................................... 4 失效检测技术研究现状................................................................................. 4 数字校园研究现状......................................................................................... 6 论文结构安排................................................................................................. 8 第二章失效检测技术相关理论......................................................................... 9 2