Computer Usability

Usability of Brain Computer Interfaces

Objective The aim of this work is to assess the usability of two BCI prototypes by measuring interaction with the systems in context, considering the performance, cognitive workload and satisfaction of non-disabled users in order to better understand how the interface affect these parameters. We tested two keyboardcontrolled Java BCI prototypes based on the Language Support Program (LSP) and th...

Usability and Value: Playing Computer Games

The essence of my PhD research surrounds the application of concepts from Usability theory to computer games.1 There are several reasons to make this connection. First, computer games are gaining huge popularity and represent one of the major uses of computer systems today. Second, computer games are becoming an important medium for purposes other than solely entertainment, and thus the study o...

Mobile Capture for Wearable Computer Usability Testing

The mobility of wearable computers makes usability testing difficult. In order to fully understand how a user interacts with the wearable, the researcher must examine both the user’s direct interactions with the computer, as well as the external context the user perceives during their interaction. We present a tool that augments a wearable computer with additional hardware and software to captu...

Usability Evaluation of Computer- Assisted Survey Instruments

Patterns for Safety and Usability in Human-computer Interfaces Patterns for Safety and Usability in Human-computer Interfaces

Design patterns have been widely touted as a potential solution to the diiculty of expressing and sharing software design expertise. Patterns have also recently been suggested as a basis for capturing the characteristics of \usable" user-interfaces. We propose that patterns may also be useful for guiding development of human-machine interfaces for safety-critical systems. We consider usability ...