本研究旨在探討國家圖書館數位保存計畫之促成因素與相關問題，藉由比較研究之描述、解釋、併排與比較四步驟，研究美國與澳洲國家圖書館數位保存計畫之內涵，瞭解美國國會圖書館與澳洲國家圖書館在數位保存活動中扮演的角色、任務、法定寄存制度、數位保存計畫背景與促成因素等，歸納數位保存策略與典範，以提出我國發展數位保存計畫之建議與參考。 研究結果歸納促成美國與澳洲國家圖書館數位保存計畫發展的15項共同因素與3項不同因素。共同因素為：1.兩國皆因著作權法促成國家圖書館擔負法定寄存的責任；2.重視數位保存問題；3.重視數位資源法定寄存；4.數位資源採自願寄存協議；5.落實國家數位保存計畫；6.落實網站典藏保存計畫；7.採合作蒐集數位資源的策略；8.研訂所需描述性後設資料標準；9.採用多種Metadata架構；10.研訂保存性後設資料標準；11.數位保存技術策略；12.採用唯一的數位保存官方標準OAIS參考模式；13.採用HTTrack網站擷取工具；14.重視數位資源的永久取用；15.合宜的數位資源取用策略。不同因素為：1.國家數位保存計畫發展方式不同；2.網路資源典藏計畫不同；3.數位資源選擇決策不同。 本論文結論歸納發展國家數位保存應考量下列議題：1.國家圖書館數位保存的重要性；2.法定寄存制度與數位資源寄存問題；3.數位保存計畫推動；4.數位資源館藏政策與選擇指南；5.網路資源編目標準；6.Metadata標準；7.描述性後設資料；8.保存性後設資料；9.數位典藏庫；10.數位保存策略；11.數位保存取用與服務；12.數位保存成功因素與策略。 最後建議：1.加強原生數位資料研究；2.國家圖書館推動我國數位保存計畫；3. 建置我國網站典藏先導計畫；4.訂定數位館藏發展政策；5.訂定數位保存政策。 / The purpose of the study is to analyze the factors that helped to materialize the national library digital preservation projects. Through description, interpretation, juxtaposition, and comparison, this study research the concepts of the digital preservation projects from Library of Congress and National Library of Australia, which include the role, the mission, the legal deposit policy, the background, and the relevant factors of the digital preservation standards and strategy. Finally come up with the suggestion of the digital preservation projects of our own. The results of this study include 15 common factors and 3 different factors. The common factors are: 1.The national libraries are responsible for the legal deposit policy due to the copyright act；2.Emphasize on the digital preservation；3. Emphasize on the legal deposit policy；4.There is no common agreement on digital resources deposit policy；5.Carry out national digital preservation projects；6.Execute the web capture projects；7.Adopt the strategy of collecting digital resources together； 8.Construct the descriptive metadata standards；9.Adopt several metadata schemas； 10.Construct preservation metadata standards；11.Digital preservation strategy；12. Adopt official digital preservation standard OAIS；13.Adopt HTTrack web capture tool；14.Emphasize on the permanent access of the digital resources；15.Appropriate digital resources access strategy. The different factors are: 1.The development of the national digital preservation projects；2.The collection of the web-based resources projects；3.The selection decision of the digital resources. The conclusions of the study are: 1.The importance on digital preservation of a national library；2.The issues of legal deposit policy and the deposition of the digital resources；3.Successfully promote the development of a digital preservation project；4.Digital resources collection policy and selection guidelines；5.Web resources cataloging standards；6.Metadata standards；7.Descriptive metadata；8.Preservation metadata；9.Digital repository；10.Digital preservation strategy；11.Access and services of digital preservation；12.Succesful factors of promoting digital preservation projects. The study makes final suggestions as follows: 1.Emphasis on the research of born digital materials. 2. Promote national central library to develop our national digital preservation projects. 3. Construct the web-archiving pilot project. 4. Establish the digital collection development policy. 5. Establish the digital preservation policy.

數位學習是透過網際網路終身學習的管道之一，透過網際網路提供數位學習，讓人們可以不受時空的限制得以在教育學習上得到數位圖書館為數位學習帶來豐富的學習素材。 本研究採用個案研究法，選擇美國國會圖書館的學習網(American Memory之Learning Page)、美國地球數位圖書館的地球系統教育(DLESE)以及我國淡水河溯源數位博物館為個案研究對象，研究目的在探討數位圖書館學習網站在教育學習的應用及其數位學習架構，包括探究數位圖書館之意涵、特色與應用、數位學習的意涵與發展、數位學習架構的要件與設計、數位圖書館學習架構之模式，並進一步對我國數位圖書館學習網站發展提出建議，最後根據研究結果提出「數位圖書館學習模式芻議」。 根據研究結果提出數位圖書館學習模式芻議，此模式可分成兩大部分，分別為數位圖書館的部分以及數位學習網站的部分。數位圖書館數位學習架構歸納十大項，根據本論文之歸納分析，將數位圖書館數位學習架構分成十大項，分別為：(1)數位圖書館特質；(2)數位館藏；(3)數位物件；(4)Metadata；(5)資訊檢索；(6)數位學習目的與特色；(7)教學系統；(8)學習系統；(9)管理系統；(10)數位學習與數位圖書館整合等。 本研究建議：(1)從事數位圖書館學習系統總體性規劃及策略，以有效整合數位資源並進行整體化建設；(2)重視數位資源之組織與互通性研究，建立全國數位圖書館聯盟管理單位；(3)擴大數位圖書館資源共享合作服務範圍，凝聚共識與團隊力，共同建立數位圖書館學習系統的功能，結合各方資源，將數位資源發揮至最大的效益；(4)由政府單位規劃中長期的數位圖書館學習系統之發展計畫，長期而持續與推動，並且培育專門的人才。 / Digital library is studied to pass on the internet network lifetime study channels, offer the digit to study through the internet network, let people not be restricted by space-time and be educating in study to receive the digital library to study for the digit bring the abundant study material. The method of case study was used, choose the Library of Congress American Memory’s Learning Page, Digital Library for Earth System Education, and the Digital Museum of Discovery of Tamsui River were used as the case research subjects. The purpose of the study is to understand the digital library studies websites and educates the application, and several in education and study structure, including probe into the meaning of the digital library, characteristic with use, several meaning of study and develop, several between important document and design, digital library to study structure study, and study website’s development and put forward the suggestion on the digital library of our country further. Then proposing the digital library study preliminary model from the result. According to the result of the study, it provided a digital library study preliminary model, this model can divide into two major parts, first parts of the digital library and second parts of studying websites respectively. Several digital libraries study structure and sum up ten great one, analyze according to the summing up of this thesis, study the structure on several of digital libraries to divide into ten great one, including: (1)Speciality of digital library; (2)The digit hall hides; (3)Digit things; (4)Metadata; (5)Information retrieval; (6)Study the purpose and characteristic in digit; (7)Tutoring system ; (8)Study the system; (9)Administrative system; (10)The digit is studied and combined etc. with the digital library. This study is proposed: (1)Engaged in digital library learn system getting overall planning and tactics, by combining several resources and carrying on whole construction effectively; (2)Pay attention to several organization of resource and general character study each other , set up national digital library alliance management unit; (3)Expand the cooperative service range of resource-sharing of digital library, condense common understanding and group's strength , set up the digital library and study the systematic function together, combine each side resource, give play to several resources to the greatest benefit; (4)The government unit plans the medium and long-term digital library and study the systematic development plan, sustain and promote for a long time, and foster special talents.