【作者】 魏慧玲； 张丽萍； 刘正捷； 张军； 朱光瑞；

【Author】 Wei Huiling1+, Zhang Liping1, Liu Zhengjie1, Zhangjun1, Zhu Guangrui1 (Sino-European Usability Center, Department of Computer science and technology, Dalian Maritime University, Dalian 116026, China)

【机构】 大连海事大学中国欧盟可用性研究中心；

【摘要】 本论文主要讲述了大众对数字电视的整体看法和接受程度,以及影响用户接受数字电视的因素,并确定可用性在大众接受数字电视过程中的影响程度,从而引出研究数字电视可用性的意义。由于数字电视是家庭环境中的娱乐休闲设施,与一般办公室环境下产品的可用性评估有所区别,因此,论文中还提出了适合数字电视可用性评估的方法。更多还原

【Abstract】 As digital technology becomes gradually mature, its application field continues expanding, almost involving all kinds of equipments and apparatus. Digital television (DTV) is the necessity of life and an important information receiving terminal, then its digitization is inevitable and should be popularized more quickly and extensively. Since 1980s, western countries have been in television digitization in various ways. The United Kingdom is the leader in this realm, while China is still in its initial stage. In this paper, we present some conclusions from a survey on the usability of DTV. The aim of this survey is to investigate public perceptions and acceptance of DTV, and to find out its influential factors. We also benchmark public perceptions of DTV usability, and elicit the significance of conducting usability research on DTV. We adopted interview and questionnaire methods. By SPSS, we conducted statistic analysis on the efficient questionnaire, including frequency analysis, correlative analysis, regression analysis, and cluster analysis, etc. Research showed that public takes an passive attitude to DTV application, and the more time people spend on surfing the web, the more easier they accept DTV application. It reflects the necessity of accessing to Internet through DTV, and embodies the trend and predominance of the amalgamation Telecom, Cable and Internet. However, in order to speedup the amalgamation, they bring the content, nomenclature and operation style of Internet into DTV without any change. Due to different user groups, different goals and different use context, this kind of copy does not make sense. Age and computer using experience are the primary factors of accepting DTV, so the accessibility of DTV should be the focus. Expenditure is the main reason for rejecting DTV. At the end of the research, we recruit many users to evaluate the ease of use of a series of products, then we use Hierarchical cluster to statistically analyze and review the relative usability between DTV and other products. Finally, we found that users’ perceived usability of DTV is less than that of computer, though the functions of computer are much richer than the former. To summarize, the research of DTV usability must be carried out without delay. DTV are deployed in a relaxing domestic setting and aimed at meeting the needs of entertainment,so the DTV usability evaluation method is different from that of product in office setting. Therefore, in this paper, we put forward a usability evaluation method, combing traditional usability with affective evaluation, which adapts to DTV application.更多还原