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題 名 | 企業內部網路上分散式應用設計與績效評估之研究=Design Metrics and Performance Evaluation of Distributed Applications on the Intranet |
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作 者 | 楊欣哲; 劉耀升; | 書刊名 | 東吳經濟商學學報 |
卷 期 | 39 2002.12[民91.12] |
頁 次 | 頁57-90 |
分類號 | 494.59 |
關鍵詞 | 企業網站; 三層式主/從架構; 分散式系統; 物件; Web site; 3-tier client/server; P-A-D; Distributed application; Object; |
語 文 | 中文(Chinese) |
中文摘要 | 隨著網路發展及技術普及化,網路使用率增加,其網路應用設計架構由傳統二層式主/從架構 (2-tierClientlServer Architecture) 延伸至三層式主/從架構 (3- tier Client/Server Architecture),但目前所使用之二層式主/從網路架構顯示出執行績效、功能上、重複使用性等限制而導致處理效率低落。因此,產生許多發展網路應用的技術如COM/DCOM、CORBA、Java Bean...等提出以改善目前的網路應用架構設計及績效表現,但如何整合目前的網路技術來改善傳統網路架構的缺失已成為必然的趨勢。在本論文中,首先探討目前企業建置其網路應用架構之相關應用技術及考量影響網路處理績效的因素加以分析。採用P-A-D (P:Presentation Logic, A: Application Logic, D: Data Access or Management Logic) 的概念於三層式主/從架構分別對於使用者介面、網路應用層面、資料庫設計進行影響續投因素之探討,其績效測試項目包含: (1) 資料負載測試; (2) 使用者壓力測試,使用績設分析工具測試其不同網路應用系統下加以模擬。最後根據執行結果以綜合評估二層式主/從式網路與三層式網路架構的優缺點,進而提出改善方法以提供未來設計企業分散式網路應用系統之最佳模式。 |
英文摘要 | Due to the popularity of Internet applications and development of Internet key technology, the usage of network applications is more increasing, and its 2-tier Client/Server architecture is scaled up to 3-tier Client/Server architecture. However, the architectures of current network applications have several limitations in terms of performance, functionality, and usability to cause the inefficient processing. Therefore, several technology tools such as COM/DCOM、 CORBA and Java Bean have been provided to improve the network performance. But, it is necessary that we must know how to integrate these tools to overcome the limitations of Intranet applications. In this paper, we first survey the references about traditional Client/Server architecture and then consider its advantages and disadvantages. Also, we analyze some technologies that set up the Web site, and address the influence factors for performance We utilize the functional aspects of P-A-D to discuss the user's interface, network applications logic and database logic, and further analyze how to select the development components to implement applications architecture. Also, we did make the empirical research using evaluation tool to validate influence factors of network. Finally, the optimal models can be proposed to design distributed applications architecture in the future. |
本系統中英文摘要資訊取自各篇刊載內容。