現今學生吸收新知的時候，常會利用網路上的豐富資訊以彌補 文本內容之不足，藉此解決疑惑、得到更完整的知識。但是有時在 網路上也找不到滿意的解答，又無法即時尋求有能力的親友協助的 話，那麼在論壇跟其他學生互相交流、一起討論找出答案也是一種 可行的方案。 但是由於論壇是獨立於文本而運作，因此針對特定文本內容 （例如針對某個章節的某個概念）的討論總是散落在茫茫文串之 中，即使用關鍵字搜尋也經常連帶找到其他不相關範圍的討論，必 須要進一步過濾才能找到有興趣的內容。此外，當學生提出了一個 新的問題，他就必須時時回去看看是否有人回答；或是想要繼續未 完的討論的時候，也得先從論壇裡把那些主題找出來。 在這種情況下追蹤問題的討論進度需要花費不少多餘的工夫， 也可能造成學生發問與討論的意願下降。因此我們提出把問題的追 蹤機制結合於文本之上的架構，讓學生在學習某個範圍的文本內容 的時候，總是能夠輕易地找到跟這些內容相關的討論，並且將有興 趣的討論串列管，以隨時獲得、或是去定義這些討論的一些狀態， 這樣就可以提醒自己哪裡可能有目前值得關注的討論內容。Students usually turn to on-line information when they study. Thus they can make up for the infertility of the textbook contents, solving their questions and acquiring more complete knowledge. However, sometimes students can not find satisfying solution on the web, then except for asking somebody in real-life, they can also post a question on the forum and discuss with others in the forum to come up with a proper answer. However, because the forum is independent from the textbook, discussions that aimed at some particular concepts in the textbook is scattered all over the whole forum. Even if students use keywords to search, they always find other matterless discussions and have to spend much time picking up useful discussion-threads they really interested in. Moreover, when students post new questions, they must frequently go back to the threads to check if someone has answered their questions. And, when they need to keep discussing with others in some threads, each time they should search out the threads in the forum before that. Tracing the progression of discussion threads waste much time and effort, inducing students’ unwillingness to ask questions and discuss in an on-line forum. Hence we propose a framework to combine Q&A management mechanism with the textbook content. In such way, students can easily find related discussions in the forum when they read textbook, and they can subscribe interested threads and monitor the status and progression of the threads. These information help students to decide which thread is worth reading in current context.
