The design scheme and technical details for Distance Examination and Computer Aided Grading System for Computer Aided Drawing are presented in this paper. The distance examination is managed by a central server and examination site servers, being connected by internet and local networks. The questions and answers are stored in data banks of SQL Server, and the program in the client is encoded by C# Based on analysis of AutoCAD object model and establishment of specific algorithm, the ActiveX automation is used to realize the grading for drawing file. The grading results are accurate and efficient. The software is shown to reach design requirements after testing.

This paper introduces a real application based on WBT(Windows-based terminal) and ActiveX Automation-remote testing system of computer-aided drawing, and describes the system principle, network construct , function designing .This system makes the local and remote users take the test of computer-aided drawing easily and gets the grade extempore.

WBT(Windows-based Terminal) is a new function in Windows 2000 Server products, it makes running application or managing system on Windows 2000 Server of the remote end as possible. The remote network lab room is a application based on WBT. This paper describes the system principle, network construct, function designing, and system technical plan of enlarging the number of terminal users.

用面向对象的设计方法,在分析AutoCAD图元对象的基础上,设计了计算机辅助绘图阅卷系统的算法,进而完成了整个系统的研制工作.