The new challenge for designers and Human Computer Interaction researchers is to develop software tools and applications for effective e-learning. Usability is one of the most important aspects of software applications. However, in practice, not much attention is given to this issue during testing. Evaluators often do not have the knowledge, instruments and/or time available to handle usability...

2000 To my family iii ACKNOWLEDGMENTS I express my sincere gratitude to my advisor, Dr. Sumi Helal, for giving me the opportunity to work on this challenging topic and for providing continuous guidance and feedback during the course of this work and thesis writing. Without his encouragement this thesis would not have been possible. Dr. Frank for agreeing to attend my defense on my last minute r...

English As Information and Communication Technology (ICT) becomes more widely used, it is increasingly important to develop methods of preparing and evaluating user-friendly e-learning content. This preparation and evaluation should not only evaluate content with respect to traditional learning strategies, but should also aim to increase accessibility as well. The article presents development a...

The purpose of the study was to investigate the influence of VF and the VA on vision related quality of life (VRQoL) in advanced glaucoma. Subjects consist of 50 glaucoma patients with mean deviation (MD) less than -20 dB in at least one eye. Patients' VRQoL was assessed using the 'Sumi questionnaire'. The impact of seven visual measures on VRQoL were compared using principal component regressi...

A psychological test, wrote Anne Anastasi in her classic book on the subject (Anastasi, 1968), is essentially an objective and standardised measure of a sample of behaviour. That psychological tests should be used to evaluate a computer system by measuring the behavioural disposition of end users towards it seems to be an obvious step. Dolotta and colleagues probably coined the phrase user-perc...

INTRODUCTION A MONITORING AND FEEDBACK TOOL TO STIMULATE PHYSICAL ACTIVITY, CONSISTING OF AN ACTIVITY SENSOR, SMARTPHONE APPLICATION (APP), AND WEBSITE FOR PATIENTS AND THEIR PRACTICE NURSES, HAS BEEN DEVELOPED: the 'It's LiFe!' tool. In this study the usability of the tool was evaluated by technology experts and end users (people with chronic obstructive pulmonary disease or type 2 diabetes, w...

The new challenge for designers and Human–computer interaction (HCI) researchers is to develop software tools and applications for effective e-learning. Software usability is one aspect of Human–computer interaction that can benefit from knowledge of the user and their tasks. However, in practice not much attention is given to this issue during testing. Evaluators often do not have the knowledg...

Uniform synthetic polymers with precisely defined molar mass and monomer sequence (primary structure) have many potential high-value applications. However, a robust and versatile synthetic strategy for these materials remains one of the great challenges in polymer synthesis. Herein we describe proof-of-principle experiments for a modular strategy to produce discrete oligomers by a visible-light...