The effect of contrasting selected graphical elements of a web page on information retrieval time

As online presence plays an increasingly important role in corporate success, the high usability of a company’s website becomes one of its most valuable assets. The time required to reach the needed information, which plays a key role among the many factors that influence a website’s usability, depends to a significant degree on the site’s design. The perception of the visual aspects of design is in turn influenced by various so-called “visual means”. This term encompasses a range of methods, procedures or techniques of using elements of graphical design to achieve the desired effect, which should be applied according not only to the informational content of the site, but also to the designer’s overall vision, i.e. the graphical layout of the site. Therefore, it can be said that a usable website design is largely dependent on the site’s composition, understood as maintaining the appropriate relations between its form and content. One of methods for increasing the visibility of a given graphical element is highlighting its distinctness, difference from other elements. This method is called contrasting. This article presents the methodology and a discussion of the results of original research into the impact of contrasting chosen text elements on the home page of a website on the time needed by a user to reach the information "privileged" by such a procedure

Eye Tracking and Web Experience

User experience research aims to understand a user’s point of view. Because eye tracking allows us to literally see through a user’s eyes, it can serve as a valuable tool in web studies, particularly in web design and development. To understand how eye tracking can be pivotal in website studies, this paper scientifically explains how the human visual system works and how eye tracker technologies can record what we register with our eyes. It then explains how web design can benefit from the data that eye tracking studies deliver. Finally, the paper discusses trends for eye tracking in future web experience research

Industry attitudes and behaviour towards web accessibility in general and age-related change in particular and the validation of a virtual third-age simulator for web accessibility training for students and professionals

While the need for web accessibility for people with disabilities is widely accepted, the same visibility does not apply to the accessibility needs of older adults. This research initially explored developer behaviour in terms of how they presented accessibility on their websites as well as their own accessibility practices in terms of presentation of accessibility statements, the mention of accessibility as a selling point to potential clients and homepage accessibility of company websites. Following from this starting point the research focused in on web accessibility for ageing in particular. A questionnaire was developed to explore the differences between developer views of general accessibility and accessibility for older people. The questionnaire findings indicated that ageing is not seen as an accessibility issue by a majority of developers. Awareness of ageing accessibility documentation was also very low, highlighting the need for raising awareness of accessibility practices for ageing. Current age-related documentation developed by the Web Accessibility Initiative was then examined and critiqued. The findings show a tension between the machine-centric Web Content Accessibility Guidelines 2.0 (WCAG 2.0) and the needs of older people. Examination of guidelines when compared to research-derived findings reveal that the Assistive Technology (AT) centric structure of the documentation does not appropriately highlight accessibility practices in a context that matches the observed behaviour of older people. The documentation also fails to appropriately address the psycho-social ramifications of how older people choose to interact with technology as well as how they identify themselves in relation to any conditions they have which may be considered disabling. The need for a novel, engaging and awareness-raising tool resulted in the development of what is essentially a "Virtual third-age simulator". This ageing simulator is the first to combine multiple impairments in an active simulation and uses eye-tracking technology to increase the fidelity of conditions resulting in partial sightedness. It also allows for developers to view their own web content in addition to the lessons provided using the simulations presented in the software. The simulator was then validated in terms of its ability to raise awareness as well as its ability to affect web industry professionals' intentions towards accessible practices that benefit older people

Evaluating usability of e-commerce sites by tracking eye movements

The majority of existing e-commerce design guidelines has been derived by conducting heuristic evaluations, without reporting the involvement of the users themselves. This research provides clarification on a number of existing web design guidelines for e-commerce sites based on empirical studies with users. Four studies were conducted and each study focused on a specific set of design guidelines as found in the literature. A combined qualitative and quantitative approach has been used, including a state-of-the-art technique, eye tracking. The eye movement data were complemented by user-profile data elicited through background questionnaires and user-perception data as captured through semi-structured interviews. The first study investigated users’ initial impressions of homepages of e-commerce sites. The second study examined users’ adaptability to persistent or varied placement of design elements. The third and fourth studies explored the effect of the presentation format of e-commerce web pages: the first in terms of the proportion of images, and the second in terms of how key icons related to an e-commerce transaction were presented. On the whole, the results of the studies corroborated existing design guidelines, but they also identified potential refinements. The thesis contributes both methodologically and empirically to Human-Computer Interaction. The combined methodological approach enables insight into the user experience that spans behavioural aspects such as visual search behaviour and visual search performance data, and subjective aspects such as user expectations and preferences. The empirical outcomes amplify the design guidelines from a user’s perspective

Holistic Model of Website Design Elements that Influence Trustworthiness

Trustworthiness of a website relies foremost on a good first impression which includes the visitor’s perception of the user interface. The focus of this research is to investigate the effects of website design elements on user perception of trustworthiness of a site and provide a set of guidelines for website designers. The research design is based on Yosef Jabardeen’s (2009) “conceptual framework analysis”. In this research paper, a holistic model is developed to depict the relationships among website design elements and trustworthiness. The model was tested, validated and updated using the results of the repertory grid technique, a process that elicits perceptions about a topic from an individual. For this research, the topic was website trust, the objects were the website design elements, and the constructs were elicited perceptions regarding those website design elements. The repertory grid technique was applied in two stages to a set of participants made up of website users and website designers. Analysis yielded useful information regarding website design associations and correlations of perceptions. The research findings confirmed original suggestions regarding associations and produced an updated, validated model of website design elements. The research indicated that while all design elements had their importance regarding trust, those elements that provided for the function and security of the website rated the highest in importance and expectation. The validated model will aid website designers in understanding what elements are appealing to the visual senses and conjure credibility and trust. Most importantly, this new understanding may help designers to create websites that attract and retain new users and establishing a successful presence on the Internet