Previous research on the effectiveness of Closed Circuit Television (CCTV) has focused on
critically assessing police and government claims that CCTV is effective in reducing crime …

One of the major challenges in the design of social technologies is the evaluation of their
qualities of use and how they are appropriated over time. While the field of HCI abounds in …

Usability evaluation helps to determine whether interactive systems support users in their
work tasks. However, knowledge about those tasks and, more generally, about the work …

It is a challenge for usability experts to perform usability inspections of interactive systems
that are tailored to work-domains of which these experts have little knowledge. To counter …

Resumo Sistemas Colaborativos (SiCo's) ou groupware são sistemas computacionais
destinados a promover a interação entre usuários, para fins de trabalho, ensino ou …

The paper outlines a set of principles for radical research in the field of information systems
for crisis response and management. After every major disaster, there is a never-ending call …

This dissertation explores the importance of the cognitive level of human action in the
evaluation and improvement of groupware usability. This research is motivated by the …