The usability is recognized as an important quality factor of any modern website. In this paper, techniques for usability evaluation of a website are proposed and their use is described. The results of application of these techniques are discussed in the frame of the design and evaluation of a web portal, serving an Academic Department. The applicability of the developed techniques in a wide ar...

Hierarchical proof presentations are ubiquitous within logic and computer science, but have made little impact on mathematics in general. The reasons for this are not currently known, and need to be understood if mathematical knowledge management systems are to gain acceptance in the mathematical community. We report on some initial experiments with three users of a set of web-based hierarchica...

Unlike the early days of computering, our contemporary virtual lives are filled with rich graphics. However examination of many weblog sites revealed that most buttons (commands) were text based. Why so? This paper compared (quantitatively and qualitatively) the differences in usability between textbased interface and icon-based interface in weblog environment. In addition, this paper intended ...

Knowledge Sharing portals are the primary gateways for users to access all the information they need for their activity with adequate safety, security and in the best quality. The usability of a Knowledge Sharing Portal plays an important role in every organization and higher learning institutions, as it helps to increase the user satisfaction, reuse of knowledge assets, consistency of informat...

The Software Engineering (SE) community has historically focused on working with models to represent functionality and persistence, pushing interaction modelling into the background, which has been covered by the Human Computer Interaction (HCI) community. Recently, adequately modelling interaction, and specifically usability, is being considered as a key factor for success in user acceptance, ...

The pandemic of COVID-19 resulted in the physical shutdown which has now transformed education into an exclusive "online learning" model. Zoom is being used to evaluate perceived usability as reference platform. students find it less collaborative, interactive, boring, and collaborative. From this perspective, Usability current online learning platforms important factor, particularly because no...

By definition, pervasive computing should support endless expressions of varying interfaces, contexts and automation. As pervasive computing becomes more prevalent, it is important that designers build systems in support of unique, in-use and user-defined characteristics. We explore this expressiveness and propose the use of existing technologies to enhance it. We investigate the impact of inte...

By design, mobile computing aims to support numerous expressions of varying interfaces, contexts, and automation. Thus, as mobile computing becomes more prevalent, it is important that designers build systems in support of as many as possible unique, in-use, and user-defined characteristics. We explore these requirements and propose to support them with two existing standardized technologies: H...

OBJECTIVES The purpose of the study was to develop and evaluate a clinical-guideline-based smartphone application ('app') for obesity management. METHODS Obesity-related knowledge and functional requirements were extracted from clinical practice guidelines, a literature review, and consultations with experts. The extracted knowledge was used to design obesity-management algorithms, and the fu...