| 摘要: | 智慧型手機與平板電腦的普及，雲端運算的需求漸漸成為顯學，而許多開發者將雲端運算與網際網路化為等號，而事實上雲端並非是新的概念。在實務上，雲端運算的價格在大量使用系統時有其降低成本的優點，但相對的在系統使用量低時反而在其基本月費上不符效益，尤其在Java的PaaS環境中有更多未知的變數，再加上開發廠商與開發者不希望只是開發一套系統，而希望進而能成為一個產品，所以雲端轉移上更需考量建置在不同雲端環境與各種類的資料庫轉換，也包含轉換至雲端資料庫，雲端轉移的考量會因雲端運算的蓬勃發展而更顯其重要。本研究由軟體發展過程與典型軟體發展方法來看雲端運算，並以雲端概念與雲端轉移，來加強傳統的系統發展生命週期，再參考多篇論文期刊，並融入的多位設計開發專家的經驗，歸納出本研究之SaaS雲端系統發展生命週期，可提供規劃設計開發符合雲端運算的雲端系統；以知識管理系統為例來開發雲端知識管理系統，並分析出雲端運算與知識管理所需的基本功能，將其組合起來為雲端知識管理系統；實作出雲端知識管理系統的雛型系統，再將其系統在雲端移轉，並轉置於不同雲端環境中詳述其所遇見的問題，歸納出雲端轉移的原因、方式與處理。
Popularity of smart phones and tablet PCs, the demand for cloud computing is im-portant, and many developers will be equal to the Internet cloud computing, and in fact the cloud is not a new concept. In practice, the price of a large number of cloud compu-ting will reduce the cost of using the system, but when the system is basic monthly fee does not match the efficiency, especially in the Java language PaaS environment are more unknown variables. Development companies and developers do not want to just develop a system, but wants to be a product, so the cloud migration needs to consider building in a different cloud environment and different types of database conversion, also contains information on converting to the cloud database. Because of the rapid de-velopment of cloud computing, cloud migration will be more important. The study by the systems development process and typical systems development methods to discuss cloud computing and cloud concept and cloud migration to strengthen the traditional systems development life cycle, and then refer to journal papers and add the experience of design and development experts, summarize the research SaaS CSDLC, providing planning, design and development cloud systems. With knowledge management system for example, development of cloud knowledge management system, and analyze the cloud computing and knowledge management the basic functions needed, to combine the cloud knowledge management system. Development of cloud knowledge manage-ment system as a prototype system, then the system in the cloud migration, and trans-ferred to a different cloud environment, summarize the research cloud transfer includes cause, method and solution. |
