数字化教学与学习环境建设是高校数字化校园建设的核心内容。利用开发工具Borland Delphi 7和SQL Server 2000开发出适用于多学科的通用计算机在线考试软件系统,实现了考试过程与管理的数字化、信息化和自动化。由于采用多层结构,在最...数字化教学与学习环境建设是高校数字化校园建设的核心内容。利用开发工具Borland Delphi 7和SQL Server 2000开发出适用于多学科的通用计算机在线考试软件系统,实现了考试过程与管理的数字化、信息化和自动化。由于采用多层结构,在最为关键的中间层,设计采用了大量的远程方法供客户端调用,从而形成"瘦客户机,胖服务器"模式,完全避免了传统C/S模式中"胖客户机、瘦服务器"的缺陷。不但使业务逻辑的改变从客户端分离出来,同时大大减少了网络流量,提高了软件系统的性能。展开更多
The main objective of this research is to provide a solution for online exam systems by using face recognition to authenticate learners for attending an online exam. More importantly, the system continuously (with sho...The main objective of this research is to provide a solution for online exam systems by using face recognition to authenticate learners for attending an online exam. More importantly, the system continuously (with short time intervals), checks for learner identity during the whole exam period to ensure that the learner who started the exam is the same one who continued until the end and prevent the possibility of cheating by looking at adjacent PC or reading from an external paper. The system will issue an early warning to the learners if suspicious behavior has been noticed by the system. The proposed system has been presented to eight e-learning instructors and experts in addition to 32 students to gather feedback and to study the impact and the benefit of such system in e-learning environment.展开更多
文摘数字化教学与学习环境建设是高校数字化校园建设的核心内容。利用开发工具Borland Delphi 7和SQL Server 2000开发出适用于多学科的通用计算机在线考试软件系统,实现了考试过程与管理的数字化、信息化和自动化。由于采用多层结构,在最为关键的中间层,设计采用了大量的远程方法供客户端调用,从而形成"瘦客户机,胖服务器"模式,完全避免了传统C/S模式中"胖客户机、瘦服务器"的缺陷。不但使业务逻辑的改变从客户端分离出来,同时大大减少了网络流量,提高了软件系统的性能。
文摘The main objective of this research is to provide a solution for online exam systems by using face recognition to authenticate learners for attending an online exam. More importantly, the system continuously (with short time intervals), checks for learner identity during the whole exam period to ensure that the learner who started the exam is the same one who continued until the end and prevent the possibility of cheating by looking at adjacent PC or reading from an external paper. The system will issue an early warning to the learners if suspicious behavior has been noticed by the system. The proposed system has been presented to eight e-learning instructors and experts in addition to 32 students to gather feedback and to study the impact and the benefit of such system in e-learning environment.
