A comparative usability evaluation of user interfaces for online product catalog

Author(s):  
Ewa Callahan ◽  
Jürgen Koenemann
Author(s):  
Xian Wu ◽  
Jenay M. Beer

Telepresence has the potential to assist older adults to stay socially connected and to access telehealth. Telepresence was initially created for office use, thus the usability of telepresence for older adults remains unknown and there is a lack of design recommendations, particularly those with an emphasis on users’ age-related needs and limitations. To bridge the gap, this study assessed two telepresence user interfaces (UIs). One UI was designed to mimic common features founds in commercially available telepresence systems. Another UI was designed based on design guidelines for older adults. Each UI was integrated to a virtual driving environment created via Unity. To assess the usability of both UIs, thirty older adults participated in usability testing. Questionnaires and semi-structured interview were administered following each UI test sessions. Results of this study provide insight on what usability features are critical for the aging population to use telepresence, such as high color contrast, automated controls, and consistent icons.


Author(s):  
Muhammad Nazrul Islam ◽  
Franck Tétard

User interfaces of computer applications encompass a number of objects such as navigation links, buttons, icons, and thumbnails. In this chapter, these are called interface signs. The content and functions of a computer application are generally directed by interface signs to provide the system’s logic to the end users. The interface signs of a usable application need to be intuitive to end users and therefore a necessary part of usability evaluation. Assessing sign intuitiveness can be achieved through a semiotic analysis. This study demonstrates how a semiotic assessment of interface signs’ intuitiveness yielded a number of benefits. For instance, (i) it provides an overall idea of interface signs’ intuitiveness to the end users to interpret the meaning of interface signs, (ii) it assists in finding usability problems and also in (iii) recommending possible solutions, (iv) provides background for introducing guidelines to design user-intuitive interface signs, (v) helps in constructing heuristic checklist from semiotics perspective to evaluate an application, (vi) no additional resource and extra budget are needed. This study also presents a list of methodological guidelines to obtain the perceived benefits of integrating semiotic perception in usability testing for practitioners.


Author(s):  
Charles K. Ayo ◽  
Ambrose Azeta ◽  
Aderonke Oni

In the 21st century, the ability of citizens to participate in online democracy is a key issue for governments in the developing nations because of its attendant benefits. Information and Communications Technology (ICT) facilities support the establishment of electronic interaction between citizens and the various organs of government. Towards this, a variety of efforts have been made, and many systems have been developed, but few attempts have been made to combine more than one mode of access for e-Democracy system. It is difficult for people with visual impairment to be involved in issues of governance and communicate with government representatives such as public office holders. For these people, having access to an electronic means of communicating with these representatives is necessary as a way of enhancing participatory democracy among the citizens. In this chapter, the authors propose an access method for e-Democracy system using Multimodal SMS, Voice and Web (Multi-SVW) system. The system was implemented using VoiceXML and PHP for the user interfaces and MySQL as the database. The system was evaluated using cognitive walkthrough strategy. The results of the usability evaluation suggest that the prototype Multi-SVW application presented in this chapter has “good usability” based on the total mean rating. The system provides accessibility options to citizens who are able-bodied and citizens who are blind or vision impaired as a way of promoting digital citizenship.


Author(s):  
Soonghwan Ro ◽  
Hanh Van Nguyen ◽  
Jungkwan Ryu ◽  
Wonil Lee ◽  
Woochul Jung ◽  
...  

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 1963
Author(s):  
Michaela Bačíková ◽  
Jaroslav Porubän ◽  
Matúš Sulír ◽  
Sergej Chodarev ◽  
William Steingartner ◽  
...  

Contemporary software systems focus on usability and accessibility from the point of view of effectiveness and ergonomics. However, the correct usage of the domain dictionary and the description of domain relations and properties via their user interfaces are often neglected. We use the term domain usability (DU) to describe the aspects of the user interface related to the terminology and domain. Our experience showed that poor domain usability reduces the memorability and effectiveness of user interfaces. To address this problem, we describe a method called ADUE (Automatic Domain Usability Evaluation) for the automated evaluation of selected DU properties on existing user interfaces. As a prerequisite to the method, metrics for formal evaluation of domain usability, a form stereotype recognition algorithm, and general application terms filtering algorithm have been proposed. We executed ADUE on several real-world Java applications and report our findings. We also provide proposals to modify existing manual usability evaluation techniques for the purpose of domain usability evaluation.


Author(s):  
Enes Yigitbas ◽  
Anthony Anjorin ◽  
Ivan Jovanovikj ◽  
Thomas Kern ◽  
Stefan Sauer ◽  
...  

Author(s):  
Regina Bernhaupt ◽  
Kristijan Mihalic ◽  
Marianna Obrist

Evaluating mobile applications and devices is particularly challenging given the variability of users, uses, and environments involved. This chapter introduces usability evaluation methods (UEMs) for mobile applications. Over the past decades various usability evaluation methods have been developed and implemented to improve and assure easy-to-use user interfaces and systems. Since most of the so-called ‘classical’ methods have demonstrated shortcomings when used in the field of mobile applications, they were broadened, varied, and changed to meet the demands of testing usability for mobile applications. This chapter presents a selection of these ‘classical’ methods and introduces some methodological variations for testing usability in the area of mobile devices and applications. It argues for a combination of both field evaluation methods and traditional laboratory testing to cover different phases in the user-centered design and development process.


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