依據內政部統計處100年12月底統計資料中得知全體身心障礙人口中，以「肢體障礙」占35.1%最多。有些行動功能受限的身心障礙者可藉由行動輔具協助移動並完成任務活動，但因電動輪椅的功能結構複雜，市面上可選擇的規格配備繁多，於選擇配置時，必需經由輔具專業治療師評估後以防止使用者操作不當發生意外，導致棄用輔具或是長期使用造成身體嚴重變形的情況。而國內物理治療師及職能治療師皆是進入輔具相關職場後才進行輔具專業訓練，經由經驗累積及嘗試錯誤法(Trial and Error) 才能建構隱性輔具評估決策思路。本研究欲將隱性知識轉換成顯性知識，建立可協助治療師評估電動輪椅時的決策參考原則，因決策樹規則清楚、容易表達及方便解讀，為資料探勘常用的分類技術之一。本研究將電動輪椅依結構分為底座傳動系統、人機介面系統、座椅變換姿勢、座椅高度變換及座椅種類五項，將決策樹葉子(Leaf)及節點(Node)分類編碼，進而依據評估原則發展出五棵決策樹。再將《教育部大專校院及高中職肢障學生》借用電動輪椅評估資料進行比對驗證，證明此五棵決策樹之路徑可行性。研究結果之五棵決策樹可協助治療師於評估身心障礙者適用電動輪椅時之決策判斷。

According to the statistical report in Dec. 2012 by Department of Statistics, Ministry of the Interior, Taiwan, majority are the people with physical disability with a percentage of thirty-five. Some mobility impaired disable people can move about and complete functional task via power wheelchair. There are vast variety of power wheelchairs in structure and function which available the market, thus users in great need of professional assessment to avoid improper use causing harmful accident and abandonment of mobility devices of body deformity. Physical and occupational therapists does not encounter assistive technology training until work force. They acquire tacit assistive technology assessment decision making through experience and trial and error. This study transform tacit to explicit knowledge and establish power wheelchair assessment decision making principles. Decision tree is one of common classification methods, it is simple, clear and easy to use. This study divide power wheelchair into five categories, (1)Power base (2)Human machine interface (3)Tilt and Recline system(4)Standing and Elevating system(5)Seating system, and using leaf and node to classify and code to develop five decision trees. Furthermore, test decision tree feasibility using power wheelchair data from physical impaired high school and university students (Ministry of Education). The five decision trees are established to assist therapists in finding the fittest power wheelchair for people with physical disability.

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網路參考來源
台灣維順工業股份有限公司http://www.heartwayusa.com
康揚輔具公司http://www.karma.com.tw
Model Systems Knowledge Translation Centerhttp://www.msktc.org/
Permobilhttp://www.permobil.com