應用決策實驗室分析法（Dematel）於企業雲端化移轉評估分析

USING DEMATEL TO ANALYSIS OF DECISION-MAKING IN ENTERPRISE CLOUD MIGRATION

蔡清嵐(Ching-Lan Tsai)

《桃園創新學報》 35期 (2015/12) Pp. 311-330

摘要

由於資訊系統維護成本日益增高，加上網路環境的成熟，為了節省成本與增進服務效益,企業資訊系統雲端化移轉已成為發展趨勢。但企業進行雲端化移轉時，並非任何企業均可立即雲端化，彙整文獻與企業訪談中重要的雲端化移轉步驟，「評估」是首要進行的作業。本研究所提七項評估準則，是以DEMATE為評估方法，經由訪談獲得專家資料，再經由DEMATE方法計算，得出準則間的因果關係。從關聯度(D+R)中得知「現有投資」與「維護成本」是最重要之準則；從原因度(D-R)中得知，七準則中屬於「被影響準則」共有三個，分別為「基礎設施」、「人力成本」、「網路與支援」；「導致類」準則共有四個，分別為「現有的投資」、「建置成本」、「維護成本」、「節省成本」。整合關聯度、原因度，則企業最重要關鍵評估因素為「現有投資」與「維護成本」，因其不僅關聯度高又屬於「導致類」元素，從管理角度言，企業當進行雲端化移轉時若能完成此二項因素評估，其它因素已是次要考量了。

關鍵字

決策實驗室分析法 ； 雲端化移轉 ； 雲端計算

並列摘要

Due to the increasing rise of information system maintenance cost, plus the maturity of network environment, the cloud migration of enterprise information system has become the development trend, so as to save cost and improve service performance. However, not any enterprise can perform cloud migration immediately. According to the critical cloud migration steps mentioned in the literatures and the interview of the enterprises, the evaluation is the primary operation. The study proposes seven evaluation criteria by taking decision making trial and evaluation (DEMATE) as the evaluation method and conducting interview to obtain expert data. And then it calculates the casual-effect relationship among the criteria by using DEMATE method. From the relevance (D+R), we know the Current Investment and Maintenance Cost are the most important criteria. From the relation (D-R), we know the following three are Affected Criteria, namely, Infrastructure, HR Cost, Network and Support. There are four criteria of Causal Type, namely, Current Investment, Construction Cost, Maintenance Cost and Cost Saving. The integration of relevance and relation shows the most important evaluation factors for the enterprise are the Current Investment and the Maintenance Cost, which doesn’t only show high relevance, but are Causal Factors. From the perspective of management, if these two factors are evaluated, all other factors are secondary considerations for the enterprise when performing cloud migration.

並列關鍵字

Dematel ； cloud migration ； cloud computing