數位相框使用性之研究

A study on the Usability of Digital Photo Frame

林維峰(Wei-Fong Lin)

指導教授 ： 林季雄

大同大學/設計學院/工業設計學系所/碩士(2008年)

摘要

目前市面數位相框的外型設計為了維持與傳統相框有相同的造型，避免消費者購買意願的降低，所以大多將按鍵設計於產品的後方、上方或是兩側，但如此的按鍵配置並不符合一般使用者所慣用的操作方式，使用者在操作時必須注視著螢幕，並且用手摸索按鍵，而造成操作上的不便。
本研究中將針對25到34歲的族群來進行實驗，實驗共分兩個階段，第一個階段之實驗利用績效量測法及開放式問卷來評估按鍵在背面及左右側的現有產品之使用性，並依據實驗結果整理出現有產品之優缺點，以發展操作介面新設計案。第二階段之實驗則針對新設計案及現有產品進行使用性評估及比較，並且利用主觀滿意度評分表來評估新設計案在滿意度部分是否有明顯之提升，進而歸納出數位相框使用性設計之原則。在新設計案的部份，其特點為採用觸控式按鍵，並將按鍵位置移至螢幕右側以便使用者操作。同時為了維持與傳統相框一致的外型，新設計案不在外框上加任何的印刷及圖示，避免消費者心理上的排斥。
研究結果顯示：1.按鍵位置在數位相框的前方較受使用者喜愛2.當按鍵在產品之上方或是背後時，最好可將按鍵之間距離加大，避免使用者誤觸並非想操作的按鍵3.操作介面的圖示最好可配合文字的說明，避免圖示涵義不清所造成在使用上的困擾4. 避免使用單向鍵的設計5.操作介面中的箭頭方向需要與使用者的認知方向相配對。

關鍵字

數位相框 ； 消費性電子產品 ； 使用性

並列摘要

In order to maintain the similar outlook design appearance of the current photo frames to traditional photo frames on the market and to avoid low consumer purchase intentions, the keys are mostly designed at the rear, on the top or on both sides of the products. However, such key arrangement does not conform to the general operational manner of users. While operating, users have to gaze at the screen and fumble for the keys with the hand simultaneously to cause operational inconveniences.

This study had performed an experiment aiming at the tribal group of ages 25 to 34. The experiment was divided into two stages; the first stage of experiment used performance measures and open-ended questionnaire to evaluate the usability of existing products with keys located at the rear and on left and right sides, and sorted out the products’ advantages and disadvantages according to experiment findings in order to develop an operation interface for a new design project. The second stage of experiment had conducted evaluation and comparison focusing at the new design project and existing products, and utilized subjective satisfaction score chart to evaluate on satisfactory part, whether or not the new design project had been significantly improved, and further to induce the usability of design principles of digital photo frames.

The new design project that this study proposed had adopted the characteristic of touch screen keys and shifted the position of keys to the right side of the screen to favor user friendliness. At the mean time, in order to maintain a uniformity outlook as to traditional photo frames, the new design project had used the screen to display the key icons as indications for users and has not added any imprint or icons on the outer frame to avoid psychology rejection from consumers.

The research findings indicate that: 1. The position of keys located at the front of digital photo frames is more favorable by users. If the keys are placed on the top or at the rear, it would be best to enlarge the space between them to avoid touching other keys by mistake. 3. It would be best for the operational interface icons to coordinate with word description to avoid implication meanings of icons to cause application confusion. 4. Avoid using unidirectional key design. 5. The directions of operational interface arrows should match with user cognition.

並列關鍵字

digital photo frames ； consumer electronic products ； usability

參考文獻

吳智豪（2004），個人數位助理之視窗操作介面發展，國立成功大學工業設計研究所碩士論文。

張嘉佑（2004），護理人員專用平板電腦之操作介面與使用性研究，大同大學工業設計研究所碩士論文。

鐘運楨（2007），高爾夫球動態分析系統操作介面及造型設計研究，大同大學工業設計研究所碩士論文。

Konrad, B. & Bruce, T.,（2000）,User Interface Design for Electronic Appliances, Taylor &FrancisInc.

Nielsen J（2001）,Ten Usability Heuristics, http://www.useit.com/papers/heuristic/