Implementation of Network Photo Album Editing and Storing System

[[abstract]]近年來，隨著科技的進步以及Internet的迅速發展，各種網路服務被廣泛的應用於日常生活中，尤以WWW的使用率最為明顯。由於WWW的互動以及多媒體的特性，加上各種程式開發環境的支援，使得應用程式的開發與呈現方式隨之發生了轉變， Web-Based Application便是其中一例。 過去Client-Server架構中的WWW服務，網頁的內容由無法提供互動的HTML語法，轉變到ASP、JSP、PHP等動態網頁，然而這種轉變將使得Server負荷過重而導致Client-Server架構失去平衡。為了要達到網頁互動，又必須平衡Client-Server兩端的負載，解決的方法便是開發Client端的應用程式元件，以善用Client端的運算能力。 我們的研究目的，在於如何設計一個Client-Server兩端負載趨於平衡的網路應用環境，我們以「具影像即地編輯功能之網路相簿系統」來展示這種架構的開發。在Server端，我們利用ASP來實作相簿系統的呈現及管理；在Client端則以VB開發檔案上傳及影像編輯二個ActiveX Control元件。檔案上傳元件，提供使用者多檔上傳及縮圖預覽的上傳介面，而影像編輯元件提供使用者在瀏覽器的平台上做影像處理。 本研究結果的貢獻，在於示範ActiveX Control元件應用於Web-Based Application的可行性，對於教育、企業環境裡開發網路應用程式具有參考價值。[[abstract]]In recent years, with the progress of technology and rapid development of Internet, all kinds of Internet service are extensively applied in daily life, especially for the widespread use of WWW. The interaction and multimedia charactristic of WWW, and support of various developmental environment shift the development and the way of presentation of application program, like Web-Based applicatoin. For WWW services under the frame of Client-Server, the content of HTML in the past couldn’t provide interactive ,dynamic action, and changed to ASP, JSP, PHP, and other dynamic HTML. However, this changed will make server overloading easily, and cause the frame of Client-Server to lose balance. To achieve interaction of WWW, and keep balance of two ends loading of Client-Server, the solution is to develop application program components of Client End to utilize the calculation capability of Client End efficiently. Our goal of research is how to design an Internet applilcation environment where the loading of two ends of Client-Server is nearly balanced, and we use Web-Based Photo Alubm to display this kind of frame. We use ASP to show and manage the system of photo album in Server End; otherwise, we use two ActiveX Control components, file uploading and image editing, which develop by Visual Basic 6 in Client End. File uploading component provide uploading interface with multi-files uploading and images preview, and image editing component provide users to make image progress on the platform of browser. The contributions of this research is to demonstrate the feasibility of ActiveX Control component applying to Web-Based application. It is a great reference for developing Web-Based application program in the environment of education and enterprise