本研究目的主要是設計和驗證一款新型態的指控制點選輸入器（FOI），延續實驗室發展的 NSC mouse 之無空間障礙設計概念，以及手指控制之操作概念，利用定位感測器之原理在空間中控制游標位置。為了驗證指控式點選輸入器（FOI）的使用績效和實用性是否符合期望，採用兩階段實驗加以評估與瞭解，共計13位男生和7位女生參與本實驗，其平均年齡24.6歲。
第一階段為基礎實驗：比較滑鼠、搖桿和 FOI 於點選、拖曳作業下Fitts’ law之作業績效，實驗結果以動作時間（錯誤率）呈現，在點選作業：滑鼠0.70秒（7.8 %）、FOI 1.29秒（13.2 %）、搖桿1.99秒（21.0 %）；在拖曳作業：滑鼠0.68秒（4.0%）、FOI 1.22秒（10.1%）、搖桿1.98秒（22.8 %）。第二階段為應用實驗：比較滑鼠、MCE遙控器和指控制點選輸入器（FOI）於架構在電腦平台的多媒體作業系統之完成時間，實驗結果顯示 FOI 在多媒體應用的績效比MCE遙控器佳。本研究認為加強輸入設備的精緻度、減少定位感測器的重量，以及增加練習的時間，更能提高使用者的熟悉度，使整體的績效表現最佳化。

The aim of this study is to design and validate a remote, finger-operate, input device (FOI). Cursor location of FOI was determined by using a gyroscopic motion sensor. The design concept of FOI followed NSC mouse that was developed in the laboratory. Two experiments were conducted to test and verify the benefits of the FOI. Thirteen males and seven females participated in the study (means age 24.6 years).
The first experiment was to compare performance of a wireless mouse, joystick, and FOI in a Fitts’ law task. The result showed that the pointing time of mouse was 0.70 sec and the error rate was 7.8 %. For FOI, it was 1.29 sec and 13.2 %, and was 1.99 sec and 21.0 % for joystick. In the dragging task, mouse time was 0.68 sec and the error rate was 4.0 %. It was 1.22 sec and 10.1 % fro FOI, and was 1.98 sec and 22.8 % for joystick. The second experiment was to examine performance time of two tasks while using a wireless mouse, a remote controller for a media center edition (MCE), and FOI in a multimedia scenario. The results showed the performance of FOI is better than that of the remote controller in the multimedia application. To strengthen the exquisiteness degree of FOI, it was suggested to decrease the weight of gyroscopic motion sensor, to improve user skill, and make performance of the whole display the optimization even more

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