隨著數位學習的興起，學習管理系統的重要性也日漸提升；但是作為一個提供學生數位教材閱讀和自我學習管理的平台仍缺乏補救教學和教材分享的機制，及儲存在知識庫中大量教材的支持，而這些困境限制了學習管理系統的發展。
本篇論文的主旨，在於提出整合學習管理系統和CORDRA來建立補救教學機制，輔助學生於學習上的成長及提升學習效率，並改善學習管理系統缺乏教材再利用的缺點。首先，我們基於鬆散耦合概念的Web Services架構，建立學習管理系統、補救教學系統和CORDRA之間的連結，使學習管理系統和知識庫之間能夠在不同平台上進行訊息交換，並以此架構作為建置補救教學機制的基礎。然後依其系統基礎設計補救教學機制，我們以Bloom教授提出的精熟學習論作為依據，建立一個評量-補救教學-再評量的流程；教師先在教材中加入問題卡製作形成性評量，在學生進行評量後，由評量結果計算出學生的精熟度，再根據精熟度，從知識庫搜尋出適合的教材進行補救教學。對學習管理系統的管理者而言，能夠快速的整合原先的系統，而不需修改原先的資料結構；對教師而言，能夠根據系統所記錄的測驗結果和分析，即時針對學生遇到的學習困難進行回饋；對學生而言，能夠即時瞭解自己在學習上的迷思概念，進行補救教學以提升學習的精熟度。

With the rise of e-Learning, the importance of LMS is growing steadily. But as a platform for digital materials studying and self-learning management, lack of remedial teaching, materials sharing and repository supporting limits the development of LMS.
This paper is aimed to propose a mechanism which integrates LMS, Remedial Teaching System, and CORDRA to enhance students’ learning efficiency and improve the lack of reusing materials. Therefore, we establish Remedial Teaching System based on the loosely coupled Web Services framework to exchange messages between the LMS and the CORDRA. In RTS’s remedial teaching theory, we use the Prof. Bloom’s mastery learning as basis to build assessment, teaching, and assessment process flow. The process is in the following:
1.Teachers add Question Cards in materials to build formative assessments.
2.Calculate students’ mastery according to the assessment result.
3.Students get recommendation teaching materials for remedial teaching.
For LMS administrators, they can rapid integrate original system without modifying data structure and setup easily. For teachers, they can give students feedback immediately according to analyze of assessment result. For students, they can understand their own misconceptions and carry out remedial teaching.

Chapter 1 Introduction 1
1.1 Overview 1
1.2 Motivation 2
1.3 Organization of this Thesis 4
Chapter 2 Background 5
2.1 CORDRA 5
2.1.1 Identifier System 5
2.1.2 Local Content Repository 7
2.1.3 System Repository 7
2.1.4 Common Services 8
2.1.5 Applications 8
2.2 LMS 9
2.3 Remedial Teaching 10
2.3.1 Mastery Learning Model 10
2.4 Student Assessment 12
2.4.1 Formative Assessment 13
2.5 Web Services 14
2.6 SCORM 16
2.6.1 Content Aggregation Model 16
Chapter 3 System Architecture 19
3-1 Introduction 19
3.2 System Requirements and Use Case 20
3.2.1 System Requirement 20
3.3 System Analysis and Design 22
3.3.1 The Design of Remedial Teaching Mechanism 22
3.3.2 Analysis of Remedial Teaching System 34
Chapter 4 Teaching and Learning Application 39
4.1 The Implementation of Remedial Teaching Mechanism 39
4.1.1 Produce a Formative Assessment 39
4.1.2 Formative Assessment in LMS 43
4.1.3 View Formative Assessment Result 44
4.1.4 Remedial Teaching 47
Chapter5 Conclusions and Future Works 53
5.1 Conclusions 53
5.2 Future Works 54

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