本文提出的身心障礙者電腦點擊系統設計與評估，相關研究已經陸續發表於國際知名期刊，主要是提出幫助身心障礙者提高電腦輸入的點擊效率設計與進行評估，本文主要內容包括提出Two-grade movement Method與 Screen-Partitioning Method的設計，協助身障者可以利用鍵盤快速、準確將電腦游標移到指定的位置，提高電腦點擊效率；另外提出Integrated Pointing Device Driver (IPDD)的設計，再配合 Automatic pointing assistive program (APAP) 與 Dynamic Pointing Assistive Program (DPAP) 程式，可以協助身障者直接利用市售的輸入裝置(例如商用的數字鍵盤與滑鼠)來操作電腦，協助他們取的價格便宜、維修容易的電腦輸入裝置。
Two-grade movement Method 的設計原理是將電腦游標移動的方式分成跳躍模式與連續模式供使用者選擇，使用者可以根據目標物的遠近來選擇移動的模式，開始移動時可以先選擇跳躍模式將游標移到目標物附近，再選擇連續模式慢慢將目標物移到指定的地點，實驗顯示當目標物較遠時此方法的移動時間比起微軟提供的Mousekey快6.17-8.10倍，當目標物較近時比起微軟提供的Mousekey快10.31-12.58倍； Screen-Partitioning的設計原理是先將螢幕切割小區塊並將每個區塊編碼系統搭配輔助視窗的程式，可以讓使用者利用眼睛直接看到目標物所在的區塊，此設計是以市售的數字鍵盤作為輸入裝置，使用者只須要在鍵盤上直接輸入目的地所在區塊的編碼，就可以將游標快速準確地移到目的地。實驗定義%AP (a percentage of able performance)為身障者在一定時間完成的次數除以正常人的完成的次數，結果顯示使用Screen-Partitioning Method達67%AP比起Mousekeys (14%AP) ,Two-grade movement(43%AP)，可以提高游標的移動效率.
IPDD的設計是利用軟體技術改寫滑鼠的驅動程式，重新定義滑鼠的功能，可以將標準的滑鼠功能改造成符合身障者使用的配置方式，讓他們可以使用肢體的殘存能力組合來使用標準滑鼠，再配合 Automatic pointing assistive program (APAP) 與 Dynamic Pointing Assistive Program (DPAP) 的應用程式設計，協助特定族群的身障者提升移動電腦游標的效率，如此可以協助他們不用仰賴特製的輸入裝置，可以直接利用市售的輸入裝置來操作電腦。實驗設計讓使用者使用APAP與DPAP方法與正常模式來比較並用來ANOVA來比較差異，結果顯示就移動時間而言使用APAP方法與不用APAP與DPAP方法做比較，使用APAP方法的使用者點擊效率提升64.5 %，使用DPAP方法比使用APAP方法點擊效率提升39.3 %。
本文提出身心障礙者電腦點擊系統設計，Screen-Partitioning Method的設計提高身障者點擊效率，目前Screen-Partitioning Method的探討只做將螢幕做三次切割的探討，未來研究將針對不同使用者及不同的切割數目做分析讓應用更廣泛；IPDD目前配合DPAP與APAP的程式設計可以讓一些特定身障者可以利用市售的輸入裝置來操作電腦，協助他們取得成本低，取得容易、維修容易的市售輸入裝置，未來規劃希望能擴大應用到更多族群，包括老人、小孩及更多個案。

This study proposed a novel design of a computer pointing system to improve the effectiveness of computer pointing for people with disabilities, and the relevant studies have been published in international journals. Two major designs of this study included Two-grade movement method and Screen-partitioning method, which are used for disabled people to rapidly and accurately move the cursor to the assigned positions by using a keyboard, for the purpose of improving the effectiveness of pointing performance. In addition, the design of Integrated Pointing Device Driver (IPDD) combined with Automatic Pointing Assistive Program (APAP) and Dynamic Pointing Assistive Program (DPAP) enables disabled people to use standard input devices (i.e. commercial numeric keyboards and mice) to operate the computer, in terms of providing them with inexpensive and easily maintainable computer input devices.
The design principle of Two-grade movement method is to divide the cursor movement into two modes- jumping and contining movement mode. Users can select each mode to move the cursor according to the distance of the target. At the beginning, users can use jumping movement mode to move the cursor near to the target, then use continuing movement mode to move the cursor to the assigned target precisely. Experimental results show that with Two-grade movement method, the cursor movement of farther target is 6.17-8.10 times faster than Mousekey provided by Microsoft; while the cursor movement of closer target is 10.31-12.58 times faster than Mousekey. The design principle of Screen-Partitioning method is to divide screen into several cell blocks and code each block with auxiliary windows program. With this method, users can rapidly and accurately move the cursor to the target position by entering the block code with commercial numeric keyboard when see the assigned target located in which block. The experiment defines %AP as a percentage of able performance, in terms of the number of completed performance for disabled people in a certain period divided by the number of completed performance for normal people. According to the result, the use of Screen-Partitioning Method is 67%AP, while the use of Mousekey is 14%AP, and 43%AP of using Two-grade movement method. It shows that using Screen-Partitioning Method can significantly improve the effectiveness of moving cursor.
The design of IPDD is to rewrite the mouse driver by software technology in order to redefine the mouse functions for disabled people to operate a standard mouse with their residual limb ability. IPDD combined with Automatic pointing assistive program (APAP) and Dynamic Pointing Assistive Program (DPAP), enables users to improve the effectiveness of moving cursor by using standard input devices instead of using specially designed assistive devices. The experiment is designed for users to use APAP and DPAP to take part in this experiment and compares the difference by using ANOVA. The results show that the pointing effectiveness increased to 64.5% by using APAP, while the pointing effectiveness increased to 39.3% by using DPAP.
This study presents a design of computer pointing system, and the design—Screen-Partitioning Method is able to effectively improve the pointing performance for disabled people. In this experiment, the computer screen is partitioned three times, and each partition is based on 4*4 dividing by Screen-Partitioning Method. The further study is to extend the application with different users and increase the numbers of cell blocks. IPDD combined with DPAP and APAP allows some disabled people operating the computer by using standard commercial input devices with the advantages of inexpensiveness, maintainability, and easy accessibility. The future plan is to expand the application to more subjects, including elders and children.

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