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Three-Phase Method for Manufacturing System Evaluation
Thesis

Three-Phase Method for Manufacturing System Evaluation

Chen Ya-Hui
Masters, 國立清華大學, 工業工程與工程管理學系
1994

Abstract

整合性系統評估架構 TOWS矩陣 分析層級程序法 ProModel IDSSF TOWS Matrix AHP ProModel StarCell
在這種消費者需求快速變動的環境中,一個公司想在市場上仍具有競爭性 是件越來越不容易的事。 因此,許多公司(工廠)想藉由新生產技術的 引進來適應這些新的需求。在此篇論文中, 我們提出一套較為完整之系 統評估架構,來幫助決策者選擇出最適當之方案。 本架構可分為三個階 段:( 1 )策略規劃與選擇;( 2 )初步方案篩選; ( 3 )剩餘方案 之細部評估。 在第一個階段中,我們建議以 "TOWS" 作為系統策略評估 與選擇之輔助工具。 其中,"T"代表了外部環境危機; "O" 代表了外部 環境機會;"W" 代表了內部環境劣勢;"S" 代表了內部環境優勢。 一旦 策略決定後, 可能會有多個方案均可達成該目標,因此,在第二個階段 中,我們利用分析層級程序法( AHP )來幫助決策分析者作初步方案的 篩選,以節省時間與金錢。 經過第二個步驟的過濾後, 剩餘的較佳方案 , 再透過 ProModel與 StarCell 這兩套套裝生產模擬軟體, 進行第三 階段細部方案的評估。 最後,再經由不同之結果表示法(如雷達圖等) ,來提供決策者判斷與選擇之基準。 此外,在實例研討中, 我們亦將所 提出之決策支援系統架構運用至實際鞋廠中,以幫助其決策者作更有效的 方案評估與選擇。 It is a difficult work for many companies to maintain or gain a competitive edge in the market-place because of the fast changing environment and customers' needs. Thus, many firms modify their formal production system to fit the changing demand by exploiting the advantages of modern technologies. A decision support framework is proposed in this study to integrate the strategy planning into the system evaluation process to make the selection of modern manufacturing systems more solid. The decision support framework consists of three phases. A "TOWS" matrix for strategy planning is suggested, in which 'T' stands for threats, 'O' for opportunities, 'W' for weaknesses and for strengths, in the first phase. Once the strategy is determined, a number of alternatives will be available. The executive support system 'AHP' is used to narrow the usually relatively large group of candidate configurations down to the three or four 'most attractive' configurations.The remaining three or four configurations are analyzed in more details in the third phase. The analysis in phase three is quantitative. The packages 'Promodel' and 'Starcell'are selected for the analysis in phase 3. An implementation of the proposed decision support framework to a real shoe-making enterprise is presented in the last part of the study.

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