網站上電子賀卡使用性評估

An Usability Evaluation of Electronic Greeting Cards on the Website

由於科技的快速發展，隨著多媒體或網路的普及，在過年、過節時可利用電子賀卡相互祝賀更方便，然而當使用者在使用網路寄發電子賀卡時，常會因為電子賀卡網頁界面優劣，關係著使用者在界面操作上的使用性問題，本研究希望藉由使用性工程之方法來評估電子賀卡網頁之界面設計之使用性；並以人的認知思維模式做進一步的分析討論。 主要研究方式分為三個部份，第一部分是挑選寄送賀卡模式不相同的三個網站，分別是：元碁電子卡中心、新絲路電子賀卡中心、一曲相思詩詞音樂賀卡。第二部分是進行受測者的使用性評估，請受測者預先填寫想要進行的步驟程序，然後實際進入該網站執行典型工作，由整個使用者操作流程中，進行操作績效評估。第三部分邀請專家以德菲法進行評估各受測電子賀卡中心之優缺點。本研究結果摘述如下： 1.以生手進行評估，以「新絲路電子賀卡中心」的錯誤率較高。在專家部分，以「元碁電子卡中心」在操作性、設計感、主觀滿意度上均具較高的評價。2.在錯誤率、操作性、設計感、主觀滿意度四個效標，受測者不會因為「是否曾經上過電子賀卡網站與寄送過電子賀卡的經驗」而有所差異。3.典型工作之錯誤率分析中，以「新絲路電子賀卡中心」與「一曲相思詩詞音樂賀卡網站」會因為點選卡片變成卡片本身的預覽。建議可修改「卡片圈選」功能－－將「卡片本身加上外框」，而旁邊的黑點為「預覽」功能，並加上文字說明。4.受測者對使用電子賀卡網頁所須要的十三個步驟的排序看法十分接近，其中以第一步驟「進入電子賀卡網站」；第二步驟選擇「電子賀卡類目」；第三步驟「選擇一張電子賀卡」及最後步驟「寄出卡片」。與一般電子賀卡網站的設計步驟相符合。選擇「信紙」、「郵票」此項的被選擇比例偏低，建議在電子賀卡網頁設計時可先不用考慮安排此一項目。

Due to the rapid development of high technology, and the increasing spread of network, it is more convenient that people uses electronic greeting cards in New Year and special festival. However, when the user sends electronic greeting cards by network, the usability problems always happened due to the bad interface design of electronic card. Therefore this study used the methods of usability engineering to evaluate the usability of interface design for web's electronic card, and used the cognitive thinking model of human being to carry on further analysis. This study can be divided to be three parts. The first part is to choose three different websites with different operation processes from Internet. These three websites include Card Acer121 of Acer Internet Services （元碁電子卡中心）, Ecard Silkera Net of New Silkera Network （新絲路電子賀卡中心） and Fortune Hypermart Net （一曲相思詩詞音樂賀卡）. The second part is to evaluate the usability of website by the users. The users were required to write down the steps they needed to do, and then login the website to carry out the typical works. The operation performance was estimated according to user's operating procedure. The third part is inviting experts to evaluate the advantage and disadvantage of each testing electronic card website by using Delphi technique method. The results are summarized as follows. 1. The error percentage of Ecard Silkera Net is higher than that of the other sites by the novice users. If the users are experts, the Card Acer121 performed better than the other websites in operation, design preference and subjective satisfaction. 2. There is no difference in error percentage, operation, design preference and subjective satisfaction between the users who have and have not the experience of login electronic greeting card website and sending electronic greeting cards. 3. According to the analysis of error percentage in typical works, the single click would become the card preview in Ecard Silkera Net and Fortune Hypermart Net. Hence, suggesting the 'choosing card function' could be modified by making a frame on card, and give the card preview function in the black spot beside the card, then add the text interpretation. 4. The results showed that the users have very similar opinions to the necessary operation steps in using electronic greeting card. The first step 'enter the website of electronic greeting card', the second step 'the category of electronic greeting card」, the third step 'Select a electronic greeting card' and last step 'Send a electronic greeting card' are fitted to the steps of typical design used by electronic greeting card website. The percentage of choosing the 'mail paper' and 'stamp' is very low. It is suggested that those two items do not need to add in designing the electronic greeting card website.