Measuring website quality: asymmetric effect of user satisfaction

Website quality measurement tools have been largely static and have struggled to determine relevant attributes of user satisfaction. This study compares and contrasts attributes of user satisfaction based on usability guidelines seeking to identify practical easy-to-administer measurement tools. The website users assessed business school homepages according to six criteria and fulfilled a randomly assigned yet typical task. After completing the task, respondents assessed the same six website quality/satisfaction criteria again. The consumer–product relationship seems similar to the link between a user and a website. User satisfaction, just like consumer satisfaction, is asymmetric and non-linear. Content and navigation have been identified as key ingredients when users judged website quality, alerting web designers and website practitioners to focus more closely on those attributes. Similar lessons can be drawn for marketing professionals, who typically supervise or determine the content, structure and other website facets.     

Spatial frequencies in aesthetic website evaluations--explaining how ultra-rapid evaluations are formed

This study investigates how aesthetic website evaluations, especially those formed after very brief presentations, depend on visual information that is encoded in low- or high-spatial frequencies. A total of 92 participants took part in the experiment. The study used a 3 × 3 mixed design in which presentation time (50, 500 and 10000 ms) and spatial filtering (low-pass filtered, high-pass filtered and unfiltered stimuli) were manipulated. First, we replicate prior results from online studies of high- and low-spatial frequencies. Second, we confirm a prediction from neurocognitive models that only low-spatial frequencies are relevant to aesthetic judgements in ultra-rapid presentation modes. Third, we demonstrate that stimulus repetitions lead to an overestimation of the importance of ultra-rapid stimulus presentations. Taken together, our results highlight the utility of neurocognitive models of visual processing to explain the rapid aesthetic evaluation of websites. PRACTITIONER SUMMARY: Using neurocognitive models we present an approach to explain how aesthetic impressions are formed. We show that ultra-rapid judgements are connected with low- but not with high-spatial frequencies, which are neurologically processed in different visual pathways. Furthermore we identify possible methodological problems in previous studies of ultra-rapid website perception.     

Expressive and classical aesthetics: two distinct concepts with highly similar effect patterns in user–artefact interaction

This study examined the utility of the concept of expressive aesthetics by testing websites that did or did not match this concept. A website scoring highly on this concept was created and was then compared to websites that were either non-aesthetic or corresponded to the concept of classical aesthetics. Sixty website users of a broad age range (18–60 years) were allocated to three experimental groups (expressive, classical, and non-aesthetic) and asked to complete a series of information search tasks. During the experiment, measures were taken of performance, perceived usability, perceived aesthetics, emotion, and trustworthiness. The results showed that expressive aesthetics can be considered a distinct concept. It also emerged that the website scoring high on expressive aesthetics shows a similar pattern of results to classical aesthetics. Both aesthetically appealing websites received higher ratings of perceived usability and trustworthiness than the non-aesthetic website. The effects of website aesthetics on subjective measures were not moderated by age.     

动态网站与静态网站的比较研究

如果网页在服务器端需要执行代码则属于动态网网站,动态网站的网页会随客户端请求的不同返回的网页也不同,也就是说传往客户端的网页是动态生成的。若网页在服务器端不需要执行代码则属于静态网站,此时传往客户端的网页是事先编好存在于服务器上的网页文件,它们是永远不变的。动态网站也可以采用静动结合的原则,适合采用动态网页的地方用动态网页,如果有必要使用静态网页,则可以考虑用静态网页的方法来实现。     

Training software developers and designers to conduct usability evaluations

Many efforts to improve the interplay between usability evaluation and software development rely either on better methods for conducting usability evaluations or on better formats for presenting evaluation results in ways that are useful for software designers and developers. Both of these approaches depend on a complete division of work between developers and evaluators. This article takes a different approach by exploring whether software developers and designers can be trained to conduct their own usability evaluations. The article is based on an empirical study where 36 teams with a total of 234 first-year university students on software development and design educations were trained through an introductory course in user-based website usability testing that was taught in 40 h. They used the techniques from this course for planning, conducting, and interpreting the results of a usability evaluation of an interactive website. They gained good competence in conducting the evaluation, defining user tasks and producing a usability report, while they were less successful in acquiring skills for identifying and describing usability problems.     

Integrating website usability with the electronic commerce acceptance model

This paper analyses the role of website usability in a B2C electronic commerce environment. The authors identify dimensions of website usability that have been examined in the literature and integrate those usability dimensions within an electronic commerce acceptance model using an e-commerce simulation. Structural equation modelling was used to analyse the relationship between several website usability and e-commerce variables (design credibility, content, interactivity, navigability, responsiveness, download delay, perceived usefulness, perceived ease of use, and satisfaction with design) as well as trust, perceived risk, and intention to transact. The results demonstrate that website usability does influence several outcomes that are important for businesses to attract and retain customers.     

A blessing,not a curse: Experimental evidence for beneficial effects of visual aesthetics on performance

The present experiment investigated the effect of visual aesthetics on performance. A total of 257 volunteers completed a series of search tasks on a website providing health-related information. Four versions of the website were created by manipulating visual aesthetics (high vs. low) and usability (good vs. poor) in a 2 × 2 between-subjects design. Task completion times and error rates were used as performance measures. A main effect of usability on both error rates and completion time was observed. Additionally, a significant interaction of visual aesthetics and usability revealed that high aesthetics enhanced performance under conditions of poor usability. Thus, in contrast to the notion that visual aesthetics may worsen performance, visual aesthetics even compensated for poor usability by speeding up task completion. The practical and theoretical implications of this finding are discussed.     

图书馆网站的综合评价方法研究

图书馆网站是现代化图书馆自我展示的窗口,如何科学合理的评价图书馆网站以提高其建设质量显得尤为重要.通过对图书馆网站的分析,建立了其评价指标体系,利用灰色统计的方法来确定模糊测评矩阵,并利用信息论中的熵技术来确定相应评价指标的权重,然后运用模糊方法对网站进行了综合评价,从而为提高图书馆网站建设质量提供了有益的理论参考.     

The influence of the search complexity and the familiarity with the website on the subjective appraisal of aesthetics,mental effort and usability

The user experience is defined as ‘a person's perceptions and responses that result from the use and/or anticipated use of a product, system or service’ (ISO FDIS 9241-210, 2009 ISO FDIS 9241-210, 2009. Ergonomics of human system interaction Ergonomics of human system interaction – Part 210: human-centered design for interactive systems (formerly known as 13407). Switzerland: International Organization for Standardization. [Google Scholar]) [Ergonomics of human system interaction Ergonomics of human system interaction – Part 210: human-centered design for interactive systems (formerly known as 13407). Switzerland: International Organization for Standardization]. Accordingly, some authors have argued that an interactive system has to be evaluated not only with regard to its usability and utility levels, but also with regard to emotional, attractiveness, and aesthetic levels. These last aspects play a substantial role on the general assessment of such systems and on the satisfaction of users. Some studies focused on the immediate aesthetic subjective perception of systems, on their subjective usability and preference perceptions. However, few studies, at least to our knowledge, have been focused on the reverse, that is, on the effect of difficulties experienced by individuals in using systems on the aesthetic appraisal. The present study aimed at determining the role of familiarity level with the website and the search complexity on the search performance and post-experiment appraisals of aesthetics, usability, and mental effort. The main results revealed that the search complexity affected negatively search performance, whereas the familiarity level affected only the re-reading of the search questions. The post-use assessments of aesthetics, mental effort, and usability satisfaction were affected by search performance. In addition, these variables were correlated except the expressive aesthetics, which seemed to be independent from the search performance and other subjective appraisals. Then, we discuss these findings in line with prior studies and present future ways of research.     

基于威胁分析的网站安全风险评估方法

提出了一种基于威胁分析的网站安全风险评估方法.该方法以威胁发生可能性和威胁产生后果损失为参数计算安全风险值,采用模糊评判法对参数进行定量计算.实例分析结果表明该方法准确、简单,具有较好的实际效果.     

基于规则的网站信息检测与修复方法

为了给网站管理员提供有效的、半自动化的工具,帮助他们处理一些可能预见的问题,提出了一种采用逻辑语言实现自动推理验证网站信息的半自动化方法,并用逻辑编程语言prolog实现。基于用户最初制定的规则来检测网站所发布的信息,同时做出相应的处理,力求能最大限度地自动修复、完整网页内容。实验结果验证了该方法的有效性。     

Assessing the performance of short multi-item questionnaires in aesthetic evaluation of websites

In recent years, website aesthetics has received a fair amount of attention from the HCI community. This has led to the creation of a variety of multi-item questionnaires aimed at capturing users’ aesthetic judgments. Researchers have used these questionnaires in several HCI studies to investigate the relationship between aesthetics and other evaluative constructs such as usability. However, their usefulness as evaluation tools in visual design practice remains underexplored. Lengthy multi-item questionnaires can be particularly problematic especially in studies where participants must evaluate multiple designs or when they are required to give responses repeatedly in predefined time intervals. Despite the criticism, single-item scales have been used in many past studies in which questionnaire length could be problematic. Another alternative available to practitioners/researchers are short versions of standardised multi-item questionnaires that have been created for the aesthetic evaluations of websites. In this paper, we present a study in which we compare the performance of three such condensed aesthetic questionnaires (i.e. aesthetics scale, AttrakDiff, VisAWI) during a website redesign project. The short versions of those questionnaires were used by 187 users during an evaluation of 7 alternative website designs. The questionnaires were compared on performance criteria such as reliability, validity, and predictive ability. Data analysis showed that although AttrakDiff’s overall performance was better, a considerable amount of variance in aesthetic judgment could not be accounted for by any of the questionnaires.     

The influence of product aesthetics and usability over the course of time: a longitudinal field experiment

A longitudinal field experiment was carried out over a period of 2 weeks to examine the influence of product aesthetics and inherent product usability. A 2 × 2 × 3 mixed design was used in the study, with product aesthetics (high/low) and usability (high/low) being manipulated as between-subjects variables and exposure time as a repeated-measures variable (three levels). A sample of 60 mobile phone users was tested during a multiple-session usability test. A range of outcome variables was measured, including performance, perceived usability, perceived aesthetics and emotion. A major finding was that the positive effect of an aesthetically appealing product on perceived usability, reported in many previous studies, began to wane with increasing exposure time. The data provided similar evidence for emotion, which also showed changes as a function of exposure time. The study has methodological implications for the future design of usability tests, notably suggesting the need for longitudinal approaches in usability research. PRACTITIONER SUMMARY: This study indicates that product aesthetics influences perceived usability considerably in one-off usability tests but this influence wanes over time. When completing a usability test it is therefore advisable to adopt a longitudinal multiple-session approach to reduce the possibly undesirable influence of aesthetics on usability ratings.     

浅析高校网站群建设与管理服务探究

高校网站的建设规模正在逐渐扩大,网站建设必须从“一群网站”走向“网站群”,以提升学校综合管理水平,但目前存在部门技术能力有限和信息管理与维护滞后等问题。因此,如何实现网站建设人性化、合理化、安全化等成为了高校网站建设的重要课题,如何提升高校网站管理服务水平,构建高水平、高效率的网站管理服务是高校网站工作者共同攻坚的重点内容。     

校园网站风险评估综述

对于校园网站而言,解决信息安全的关键就是明白网站面临的风险所在。利用风险评估来识别可能存在的风险和威胁,对暴露出的问题进行有针对性的防护,这样才能保证校园网站稳定高效地为师生服务。该文通过对校园网站风险评估的意义、方法、安全解决方案的阐述,意在提高广大校园网站管理者的风险防范意识,提高网络安全的总体水平。     

Building presence in an online shopping website: the role of website quality

This study explores how sellers’ website quality influences buyers’ perceived presence, which in turn affects website identification and purchase intention. The results of a conceptual model, with data collected from TaoBao, demonstrate that information and service quality are positively related to social presence, and system and service quality are positively related to telepresence. Furthermore, information and service quality increase website identification, but system quality does not. Finally, social presence positively affects website identification and purchase intention, while telepresence only positively affects website identification. These results bridge the research gap about the formation of presence in an online shopping context.     

The influence of product aesthetics and user state in usability testing

An empirical study examined the effects of two influencing factors in usability tests on user performance and usability ratings. Product aesthetics (high vs. low) as the main independent factor and prior usage event (positive vs. negative) as a subsidiary independent factor were varied in a between-participants design. 60 participants took part in the experiment, completing a number of typical tasks of mobile phone users. The results showed that increased product aesthetics had a positive effect on perceived usability and led to longer task completion times. After a negative usage event had been experimentally induced, usability ratings dropped as expected but user performance on subsequent tasks remained unaffected. An important implication of the study is that the aesthetic properties of a product may have multiple effects that go beyond perceived product attractiveness.     

CBID系统的可用性评估

本文采用用户测试法和用户调查法对CBID(Case Based Industrial Design)系统进行评估分析。通过对可用性评估结果的分析,进一步为CBID系统与ICAID系统可用性对比研究提供根据。