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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/67633

    Title: T公司硬體平台世代更新的因應對策;An Alternative Proposal for Company T in Dealing with Legacy Computer Hardware Upgrades
    Authors: 莊新國;Chuang,Hsin-Kuo
    Contributors: 資訊管理學系在職專班
    Keywords: 產品生命週期;老舊系統;系統汰換;硬體更新;作業系統虛擬化;汰換策略;Product Life Cycle;Legacy System;System Replacement;Hardware Upgrades;Operating System-Level Virtualization;Replacement Strategy
    Date: 2015-06-29
    Issue Date: 2015-07-31 00:21:22 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 企業資訊系統的誕生是依據公司的業務需求而發展建立起來的。此資訊系統從當初的規劃、設計、建置、測試、正式上線到維護階段有一定的生命週期。只要企業的需求存在,資訊系統的生命週期在進入維護階段後,依據企業成長需求而進行資訊再造工程,其系統核心所提供的功能與需求是不斷地在進化與演進,經過重新的規劃、設計、建置、測試、正式上線、又重新賦予此系統另一生命週期。此週期性的向上循環確保了企業的資訊競爭力,也符合企業內部的功能需求並因應企業外在環境改變而有所有變革。
    本研究以實際導入T公司解決方案為例,探討個案公司面對老舊關鍵資訊系統時,可採行的因應對策。在面對個案公司資訊主管所遭遇的兩難問題,採用新的完整第三解決方案,其架構運用了新的虛擬技術,解決汰換老舊資訊設備與軟體包袱,減少總體資訊設備維護成本費用。其設計更具備了高可用性、可靠性與效能,間接提升了企業的營運競爭力。透過個案公司導入成功經驗,提供未來資訊主管解決此類似問題之參考。;With the rapid advancement in information technology, hardware provided by vendors changes at an ever increasing pace. However, information systems, especially the mission critical ones, often does not follow the vendor’s product life cycle. Therefore, many companies are faced with the high cost of IT maintenance fee and performance bottleneck. Company CIO are hard pressed to make a decision, whether to replace the system, or continue to pay the continuously increasing maintenance costs and take the risk of hardware failure. System upgrades may seem to be the best way out. However, it may result in a whole new set of problems, especially for companies with mission critical applications. In this context, legacy application software has a compatibility problem with the new hardware system, while replacing the applications in tandem with hardware upgrades is a lengthy and high risk process. In addition, often times, the developers of the legacy systems are no longer available, resulting in software orphans. As such, many companies choose to continue to pay increasing maintenance fees to keep the system operation smoothly.

    This study looks into the problem of Company T, which is faced with the legacy system replacement problem. A proposal is made to take an alternative route, adopting a "third way" of system upgrade. The new solution is based on the new virtualization technology, solving the legacy application compatibility issue and provides a quick and fast way to migration the application. The systems design takes into account issues of high availability and high reliability. The solution not only reduced the IT total cost of ownership, but also provided the rooms for future growths in business requirements. This successful case provides a viable alternative for CIO facing similar problems.
    Appears in Collections:[資訊管理學系碩士在職專班 ] 博碩士論文

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