和弦鍵盤字母配置與編碼之研究與設計

A Study and Design of Alphabet Coding for the Chord Keyboard

周太一(Tai-Yi Chou)

指導教授 ： 梁成一

大同大學/設計學院/工業設計學系所/碩士(2005年)

摘要

電腦鍵盤一直是電腦最普遍的輸入工具，而傳統的QWERTY鍵盤一直受到大家的詬病，因而有和弦鍵盤等的產生，但其不太盛行之主因是因為使用方式不太一樣，使用者必須重新學習。過去的文獻提及要記住鍵盤位置才能增加使用者的輸入效率，因此，如何突破記憶上的速度是本研究所要探討的問題。
故本研究目的在探討更佳的編碼方式以及使用螢幕小鍵盤對操作者的幫助，以縮短學習時間，進而可能的縮短操作時間並減低記憶負荷。經過前測、螢幕小鍵盤與鍵盤輸入方式對鍵盤配置記憶之探討，結果顯示出：螢幕小鍵盤可以減少使用者在輸入時視線之游移並且幫助記憶。
編碼部分是以英文字母順序排列的記憶模式搭配手指靈活度、英文字母出現頻率搭配手指靈活度、QWERTY配置搭配手指靈活度，這三種方法配合左右手切換進行的實驗結果顯示：在記憶方面，英文字母順序排列的記憶模式所花費的時間最短，即使用者能夠最快記憶的方式；在打字輸入方面，則是以英文字母出現頻率搭配手指靈活度，所花費的時間最短。打字是以輸入速度為首要，英文字母出現頻率的編碼只要多花29% (66.34秒) 的時間即可達到與英文字母順序排列的編碼相同的水準，所以本研究提出英文字母出現頻率之編碼是值得推薦的和弦編碼配置方式。
期盼本研究之結果提供未來的設計者做為參考，並可以幫助使用者更有意願的使用和弦鍵盤，進而減少人因的傷害，更讓大眾接受。

關鍵字

和弦鍵盤、和弦編碼、螢幕小鍵盤、記憶

並列摘要

The keyboard is the most common input tool of the computer. People have been complaining about the traditional QWERTY keyboard, and as a result new products like the chord keyboard were introduced. These newcomers have not been popular because users are required to learn to use them. Past literatures indicated that enhancement of input efficiency lies in users’ memorization of positions of the keys. This study, therefore, explores how to attain breakthroughs in memorization speed.
The purpose of this study is to discuss how better coding approaches and the use small screen keyboards help operators in order to shorten the required learning time and operating time and reduce memory load. Following the pretest, as well as exploration of the impact of small screen keyboards and keyboard input approaches on memorization of the keyboard layout, the outcome indicates: Small screen keyboards can reduce users’ vision line movement and speed up memorization.
In the area of coding, three types of approaches (English-alphabetical-order-based memory mode and finger dexterity; frequency of English alphabets and finger dexterity; QWERTY keyboard layout and finger dexterity) are tested in conjunction with switching between the right hand and the left hand. Experiment result indicate: In the area of memorization, the English-alphabetical-order-based memory mode entails the shortest time. In other words, it is the fastest way for users to memorize. In the area of key-in, frequency of English alphabets and finger dexterity entails the shortest time. When it comes to typing, input speed is the key. English-alphabet-appearance-frequency-based coding requires only 29% more (66.34 seconds) to reach the memory level of English-alphabetical-order-based coding. So the English-alphabet-appearance-frequency-based coding proposed in this study is a recommendable approach for chord coding.
It is the objective of this study that outcomes of this study would serve as reference for future designers and make users more willing to use chord keyboards in order to reducing ergonomic injury.

並列關鍵字

Chord Code ； Chord Keyboard ； Memory ； On-Screen Keyboard

參考文獻

崔德高，電腦的發展與應用，台灣書店，民87。

電腦教育發展協會 編著，“t7篇”，中打輸入及聽打測驗V3.01，民92，台科大圖書股份有限公司。

洪湘穎，適用於行動資訊產品之和弦輸入設備研究，國立成功大學碩士論文，民92。

陳俊宇，行動化資訊產品之整合輸入設備研究，國立成功大學碩士論文，民93。

Aaras, A., Fostervold, K. I., Thoresen, M., and Larsen,S., “Postural Load during VDU Work: Comparison between Various Work Postures,” Ergonomics, Vol. 40, No. 11, 1997, pp. 1255-1268.