近年來隨著移動通訊技術的發展和智慧型手機的普及，越來越多的多媒體通訊服務應用程式（Multimedia Messaging Service Application, MMSA）應運而生，不僅逐漸取代現有的手機簡訊功能，也改變了人們現有的生活方式，同時也產生了一種新興的網路社群，且可預見這樣的趨勢會更加明顯。如本研究中所提及的「Line」、「WeChat」和「KaKao Talk」等應用程式也是時下熱門的App，不僅在短短幾年時間內就擁有了過億的使用者，也同時開創了獨特的虛擬社群網路平臺。而本研究就將通過介面排版與互動型式入手，針對現有的基於MMS應用程式的行動社群的介面設計來探討相關使用性問題，以求獲得具有更佳互動滿意度之介面設計，同時為進一步研究提供參考建議。
本研究之實驗分為兩個階段來進行展開：（1）前導性實驗：針對現有多媒體通訊服務應用程式進行調查，瞭解其操作模式、介面使用性、、以及互動滿意度；（2）驗證實驗：由前導性實驗所歸納出欲驗證的實驗因子，針對MMS中行動社群介面設計進行進一步研究，並規劃驗證實驗。
驗證實驗部分以兩種「介面排版型式」與三種「互動型式」的雙因子混合實驗的方法進行設計研究。其中「介面排版型式」之變項共分兩級：（1）「九宮格排列式」：意指將資訊已九宮格型式來進行排列；（2）「豎向順序排列式」：意指將資訊按順序依次排列的型式。而「互動型式」則分為三個層級：（1）「固定跳轉式」：意指通過固定按鍵跳轉不同頁面來完成操作；（2）「懸浮彈出式」：意指通過彈出的懸浮式按鈕來進行任務操作；（3）「進階操作式」：一個按鍵擁有兩種不同的功能，短暫按壓和長時間按壓擁有不用操作效果。再透過實驗獲得任務操作績效、系統使用性、介面互動滿意度與使用者綜合感受之結果。
本研究探討結果如下：（1）在現有相同介面大小的情況下，能夠顯示足夠多，且足夠清晰易於辨識的資訊的介面，在操作績效上會有更好的提升；（2）使用簡潔高效的操作階層，減少不必要的流程，可以大大提高操作績效的表現；（3）在使用者練習充分的情況下，「進階操作式」的操作績效優於「懸浮彈出式」，且「懸浮彈出式」的績效優於「固定跳轉式」；（4）系統使用性方面，在「介面排版型式」方面，「九宮格排列式」的得分要優於「豎向順序排列式」；而在「互動型式」方面，「懸浮彈出式」要優於「固定跳轉式」與「進階操作式」。（5）互動滿意度方面，「懸浮彈出式」皆要優於「固定跳轉式」與「進階操作式」。

In the recent years, more and more multimedia messaging service applications are available in the market and one after another with the fast development of the mobile communication technology and the smart phone. The multimedia message service applications not only take place of the existing simple function of the mobile text-message, but also transform the living style of the ordinary people. A brand-new virtual community appears, accordingly. In the near future, this trend is sure to come into being. Multimedia messaging service applications, such as “Line”, “WeChat” and “KaKao Talk” as explored in this study. They have as many as more than 100 million users. They also create their own mobile community in their MMS applications.
The experiment in the study includes two stages: (1) The pilot test: It includes the investigation of MMS applications’ interface usability, operating style and user interaction satisfaction. (2)The validate experiment: Based on the results generated from the first stage, the independent variables are identified. This research study focus on the mobile social applications of MMS interface.
The validate experiment was planned based on a 2(levels of layout styles) by 3(operation modes) two-way ANOVA design. There are two levels in the independent variable of layout styles: (1) Grid layout: information from mobile community has been organized in 3×3 grid. (2) Vertical continuous layout: information has been organized like a vertical list. There are three levels in the independent variable of operation modes: (1) Jump button: click this button will jump to another screen of control. (2) Popup button: click this button, the control panel will visible in the same screen. (3) Advanced button: this button has two different control mode, short click mode and long click mode. Based on the experiment, the results regarding user task performance, system usability scale (SUS), questionnaire for user interaction satisfaction (QUIS), and user experience can be obtained.
The generated findings of this research study are as follows: (1) More information on the same touch screen can improve users’ task performance. (2) Using operation mode with brief process can enhance users’ task performance. (3) In the validation experiment, with enough practice “Advanced button” performs the best in most of test. (4) From the result of SUS, grid layout is much better than vertical continuous layout, and popup button is better than other operation modes. (5) The results from QUIS data analysis showed that popup button is better than other operation modes.

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