背景：將決策支援系統（Decision Support System, DSS）整合於護理指導資訊系統，不僅可增加護理人員的使用選項，也可依著病人的照護需求，產生個別化的護理指導內容。目的：本研究除以資訊科技接受模式（知覺有用性、知覺易用性、使用態度、使用意願）為架構，使用問卷調查門診護理人員對護理指導資訊系統的接受度外，並比較決策支援系統導入前後的使用量差異。方法：針對某醫學中心門診護理人員，蒐集其於決策支援系統整合於護理指導資訊系統前後期的科技接受度問卷調查，並由資料庫下載同期前後4個月使用量，以分析其使用次數及使用內容類別。結果：結果顯示，人員對護理指導資訊系統的接受度，以「知覺有用性」認同度最高，其次為「知覺易用性」；在實際使用量從191.3件／月提升至1,308.5件／月（Z=-3.72, p＜.001），且護理指導的種類也有差異（Z=-3.52, p＜.001），但科技接受模式的變項卻未影響實際使用量。結論：DSS導入護理指導資訊系統後，確實提高護理指導量，但科技接受模式的變項卻未影響實際使用量，此可能與系統提供決策參考的特性、內容設計、操作流程與列印速度等原因相關。

Background: The integration of Decision Support System (DSS) with nursing instruction information systems not only provides more alternatives for nursing use but also produces individualized nursing instructions for patient care needs. Purpose: This study applied the Technology Acceptance Model (perceived usefulness, perceived ease of use, use attitude, use intention) as a framework to design a questionnaire to survey the technology acceptance of nurses toward the nursing instruction information system. Furthermore, this study explored the outcome of technology use both with and without an embedded DSS. Methods: Nurses working in an outpatient department of a medical center at which a DSS was embedded into the nursing instruction information system were recruited to complete a questionnaire survey on technology acceptance. Data downloaded from the database for 4-month pre-and-post results were analyzed to compare the differences in usage. Results: Results indicate that perceived usefulness was rated higher than perceived ease of use, with actual use increasing significantly from 191.3 to 1308.5 times per month (Z=-3.72, p＜.001). Usage in different categories increased significantly as well (Z=-3.52, p＜.001). Variables of the technology acceptance model did not affect actual use. Conclusion: Although DSS implementation increased actual usage, the variables did not increase usage. This may be attributable to the features of the DSS, interface design, workflow, and print speed.