任務-科技適配模式和資訊系統成功模式是MIS文獻中兩個重要的模式，這兩個有很強理論基礎的模式解釋了資訊科技的使用與使用者績效之關係，任務-科技適配模式主要強調使用者的任務需求和資訊科技特性的適配性，而資訊系統成功模式則強調資訊品質、系統品質及服務品質對使用者績效的影響。本研究以任務-科技適配與資訊系統成功模式為基礎，發展並驗證一個決策支援系統成功模式。本研究總共發放500份問卷給銀行的中階主管，回收212份有效問卷，有效回收率為42.4%。資料分析使用路徑分析法來驗證我們提出的模式，此整合模式比各別單一模式提供更強的解釋力，研究結果顯示資訊系統品質、服務品質、任務-科技適配度是決策支援系統成功之重要影響因素。

The Task-Technology Fit (TTF) and the Information Systems Success Model (IS Suc-cess Model) are both significant models in the MIS research. These two models provide a much needed theoretical basis for exploring the factors that explain information systems utilization and its link with user performance. TTF focuses on the match between user task needs and technology characteristics. IS Success Model focuses on the system quality, infor-mation quality, and service quality have positive effect on users' performance. This research based on TTF and IS Success Model. We develop and empirically test a theoretical model of DSS success. 500 questionnaires were distributed to middle managers in a bank and 212 usable replies were received, or 42.4% of the total sent. This study tests our model using path analysis. Our integrated model provides more explanatory power than either model al-one. Research results show that information system quality, service quality and task-technol-ogy fit are determined DSS success.