具有自動評分功能的類別圖考試系統

Abstract

由於電腦的普及，使得線上測驗變得日趨流行，單純使用文字的教學已經不能夠滿足現在的教學環境。此外，許多研究和實驗的結果也顯示視覺化的學習能提升學生的學習成效，若能使用電腦線上測驗則更能使得視覺化的學習更加完整。視覺化的表示有很多種，圖片、動畫等等，而結構化的圖形也是其中一種視覺化的表達；在工程科學中，為了讓工程師和學生更輕易地表達欲設計的系統架構，常用結構化的圖形來塑模。而在系統塑模當中，類別圖形扮演了一個很重要的角色。因為類別圖能夠幫助學生較快速理解系統架構，所以學習如何使用類別圖是非常重要的。然而，如何評量學生是否會使用類別圖來規劃系統架構是一個挑戰。通常使用人工方式來評分，因此非常耗費人力、物力及時間。然而一般塑模的工具只提供學生可畫類別圖等基本功能，並無法用來評量學生作答的正確性，本研究發展了類別圖的考試實施及自動評分系統，透過個人電腦來進行類別圖的考試，考完試後馬上可以給學生評分，具有加速考試的過程及減少批改時間等優點。

Teaching activities with text-only may not meet the demands of learning environment nowadays. Researches revealed that students’ learning performance can be improved by introducing visualized learning environment. The population of personal computers results in the wide usage of visualized computer assisted learning tools. There exist lots of visualized items, for example, pictures, animations, and also the structure diagram. In engineering science, structure diagrams are usually used to perform modeling, which can help engineers and students to illustrate and understand the system architecture easily. For example, class diagram can help students to realize the whole system architecture in a more efficient way, it is relatively important to learn the usage of class diagram. However, the assessment of the class diagram drawing by students may become a challenge. General modeling tools only provide the basic drawing functions but not assessing the correctness of results. The assessment can only be done manually, that spends lots of manpower, resources, and time-consuming. In this study, we developed an automatic testing and assessment system for learning class diagram. The test can be hold online, and the feedback can be obtained in real-time. It can also help accelerate the testing process, and reduce the time and manpower of assessment.