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Analysing interactive devices based on information resource constraints

Analysis of the usability of an interactive system requires both an understanding of how the system is to be used and a means of assessing the system against that understanding. Such analytic assessments are particularly important in safety-critical systems as latent vulnerabilities may exist which have negative consequences only in certain circumstances. Many existing approaches to assessment use tasks or scen...

A specification patterns system for discrete event systems analysis

As formal verification tools gain popularity, the problem arises of making them more accessible to engineers. A correct understanding of the logics used to express properties of a system's behavior is needed in order to guarantee that properties correctly encode the intent of the verification process. Writing appropriate properties, in a logic suitable for verification, is a skillful process. Errors in this ste...

Combining static and dynamic analysis for the reverse engineering of web applic...

Software has become so complex that it is increasingly hard to have a complete understanding of how a particular system will behave. Web applications, their user interfaces in particular, are built with a wide variety of technologies making them particularly hard to debug and maintain. Reverse engineering techniques, either through static analysis of the code or dynamic analysis of the running application, can ...

Developing serious games with the APEX framework

APEX was developed as a framework for the prototyping of ubiquitous computing (ubicomp) environments. In this paper we explore its role as a platform for developing serious games. In particular we describe the Asthma game which is aimed at raising awareness of Asthma triggers among children. The game is designed to stimulate a healthier life-style for children with ashma.

Ambiente de geração, mutação e execução de casos de teste para aplicações Web

Cada vez mais as interfaces gráficas são um ponto-chave entre a comunicação dos utilizadores e o sistema. Para garantir que estas executam devidamente uma adequada fases de testes é essencial. No entanto, a execução de testes numa interface é um processo dispendioso e moroso, sendo estes tipicamente executados de forma manual. Neste artigo é explorada a automatização do processo de teste de interfaces para apli...

Avaliação de ambientes ubíquos na plataforma APEX

Este artigo descreve a avaliação de um ambiente ubíquo utilizando a APEX, uma plataforma de prototipagem rápida de ambientes ubíquos que permite que os utilizadores naveguem num mundo virtual, podendo experimentar muitas das funcionalidades da solução e do design proposto.

Desenvolvimento de jogos educativos na plataforma APEX : o jogo da asma

plataforma APEX foi desenvolvida para a prototipagem de ambientes de computação ubíqua. Neste artigo exploramos a sua aplicabilidade ao desenvolvimento de Jogos Sérios. Ou seja, jogos que para além de uma componente lúdica, possuem uma componente instrutiva e formativa. Em concreto, descrevemos o Jogo da Asma. Um jogo que pretende chamar a atenção das crianças para os factores causadores de ataques de asma, bem...

Depth cues and perceived audiovisual synchrony of biological motion

Due to their different propagation times, visual and auditory signals from external events arrive at the human sensory receptors with a disparate delay. This delay consistently varies with distance, but, despite such variability, most events are perceived as synchronic. There is, however, contradictory data and claims regarding the existence of compensatory mechanisms for distance in simultaneity judgments. Pr...

GUIsurfer : a reverse engineering framework for user interface software

Partial plant models in formal verification of industrial automation discrete s...

The use of a plant model for formal verification of Industrial Automation systems controllers must be used in order to improve the obtained results. However, if there are some cases where the use of a plant model makes the formal verification results more realistic and robust, there are other cases where this does not always happen. The discussion presented in this paper is related with the need of using a Plan...