Potential customers usually want to know how they will benefit if they hire a usability professional, and they may want numbers to measure those benefits, or calculate a return on investment. However, many professionals become confused when customers ask them to measure the usability of a software application, software program, web site, or other software product. In order to clarify the proces...

Evaluating the cross-platform usability of multiple interactive systems has become increasingly essential. Despite eye tracking being used to supplement traditional usability assessment, there is little research on its use for cross-platform usability evaluation. Our exploratory study seeks relationship between eye-tracking metrics and cross-platform usability problems. We user-tested three cro...

Usability has primarily been served by separating the user interface from the remainder of the application. However, several researchers have recently determined that there is a direct relationship between architectural decisions and usability requirements. This leads us to conclude that more attention should be devoted to usability driven architectural analysis methods. We present a case study...

The usability of user interfaces is crucial for the success of an application. Model driven user interface (UI) development speeds up the production of UIs and improves the maintainability of UIs. However, the usability evaluation of UIs is usually conducted by end-users or experts after UIs are generated. Such a user centric evaluation is usually time consuming and expensive, especially when t...

As the practice of software engineering matures, project teams are leveraging the expertise of those with a background in other domains such as usability. This paper proposes a model and agenda for understanding and improving social interaction on agile usability software teams. We argue that social interaction on multidisciplinary agile usability teams, as a means to integrating the software d...

The Human-Computer Interaction (HCI) is gaining momentum as more and more people increasingly are using technology tools and devises for their daily activities. Users expect highly effective and easy-to-learn interfaces and developers and designers now realize the crucial role the users’ interface plays. HCI and System Usability design have greater significance in media use as the usability pro...

One of the central concepts in human-computer interaction (HCI) is usability. Interestingly, in spite of its brief history as a scientific and applied discipline, HCI has already produced several different views on usability. These views are, in turn, interrelated with how research and systems development are seen. This paper identifies five different perspectives on usability: general theory, ...

This paper presents important factors affecting the Usability of Academic web-sites. Well known academic sites have been evaluated for their usability. Usability is the most important quality factor a web-site should consist of. A broad, integrated, engineering-based approach has been used to evaluate the usability of the Web-sites. A small, controlled and well planned experiment is conducted i...

The purpose of this paper is to present the main characteristics of ActivityLens (AL), an environment that facilitates comparative usability evaluation of web sites. AL supports the usability evaluation process with innovative tools designed for this purpose. The comparative usability evaluation is based on a usability assessment model that is also described briefly. Finally, a comparative usab...

A system can have adequate functionality, but inadequate usability because it is too difficult to use. The purpose of usability requirements is to guard against that. This paper shows six styles for usability requirements seen in practice or recommended by experts. For each style we discuss how we can verify the requirements, how we can use them during development, how we elicit the data for th...