自開放政府思潮興起，各國積極推動開放政府資料的加值應用，透過開發人員參與，能讓此類資料轉化為大眾可便利使用的資訊產品，落實開放政府資料精神。本研究以35位具有應用開放政府資料、開發資訊服務產品經驗的人員為對象，藉半結構式訪談法蒐集其應用此類資料的經驗，並參考紮根理論研究法精神進行質性文本分析。研究結果顯示，開發人員應用開放政府資料的經驗受到資料品質、服務品質、產品品質、經驗品質及回饋品質等不同因素，及其下15項指標影響。本文以開放政府資料加值應用生態圈的觀點為論述背景，研究結果不僅呈現資料應用者觀點下的開放政府資料環境良窳，亦有助於公部門採取具體策略及行動，吸引更多開發人員加入此加值應用的行列。

Open government data (OGD) has been discussed globally for its value in improving the government's service quality and transparency. However, most OGD must be utilized by the practitioners in their projects so that the public can benefit from the outcomes and realize the philosophy of OGD. This study investigated 35 practitioners' experiences utilizing OGD with semi-structured interviews and analyzed transcripts via a qualitative approach based on grounded theory. The results present five factors that influence practitioners' experiences: data quality, service quality, product quality, experience quality, and feedback quality; moreover, 15 indicators among the above factors were identified. In conclusion, practitioners play a crucial role in turning OGD into valuable products to engage the public in the OGD ecosystem and expand the value of such data. This paper gives specific recommendations to the government to improve the OGD environment from a practical perspective and demonstrates the meanings of practitioners' contributions to the OGD movement.