Determining quality for web applications requires an orientation beyond traditional quality models. Researchers have pointed to usability as a key component of web application quality. Usability is not a new quality characteristic. What is new is that it is a key success factor for web applications. For conventional software applications, usability may be a ‘nice to have’, but for web applicati...

Think-aloud usability analysis provides extremely useful data but is very time-consuming and expensive to perform because of the extensive manual video analysis that is required. We describe a simple method for automated detection of usability problems from client user interface events for a developing medical intelligent tutoring system. The method incorporates (1) an agent-based method for co...

AvI-index is a usability measurement questionnaire to assess IT systems’ usability as a factor dependent on efficiency, effectiveness and work environment. It is focused on how personal skills and organizational processes contribute to successful user participation and through that to higher usability, to better work environment, and to higher effectiveness and efficiency. Reliability coefficie...

The effects of age in usability testing were examined in an experiment. Sixty users from two age groups (M = 23.0 yrs, M = 58.1 yrs) operated two technical devices (keyboard-based and touchscreen-based smartphones). In addition to various performance measures (e.g. task completion time, task completion rate), several subjective measures were taken (e.g. perceived usability, affect, and workload...

Eelke Folmer, Jilles van Gurp, Jan Bosch Department of Mathematics and Computing Science University of Groningen, PO Box 800, 9700 AV, the Netherlands [email protected], [email protected], [email protected] http://www.rug.nl/informatica/search Abstract Usability is increasingly recognized as an essential factor that determines the success of software systems. Practice shows that for current softwa...

Extended Abstract 1 Developing a usable website is pivotal for e-business success, yet previous studies have reported that current websites contain numerous usability problems. There are many reasons for poorly designed websites, but this research focuses on the lack of a good theory of website usability, a theory that explains and predicts the effects of website usability on online customer pe...

Usability and Quality in Use Measurement: A Roadmap for a Consolidated Model Ahmed Seffah [email protected] Mohammad Donyaee [email protected] Rex B. Kline [email protected] Harkirat K. Padda [email protected] Abstract. Usability is increasingly recognized as an important quality factor for interactive software systems, including traditional desktop applications, Web-base...

The Open Source Software (OSS) movement has had enormous impact on how software is created and continues to attract interest from researchers, software developers and users. A factor that may be inhibiting OSS from achieving greater success is usability, a fundamental characteristic to user acceptance of software. Motivated by the uniquely user-driven nature of the open source model and the ext...