Jaime Muñoz-Arteaga

A measurement model for secure and usable e-commerce websites

This paper presents a new method to assess usability, security, and e-commerce requirements of websites. Previous research works propose a list of primary requirements for human-computer interaction, security, and e-commerce in an independent way, but they do not integrate these three aspects into a single evaluation method. We present an overview of these basic requirements, which are subsequently incorporated into a set of metrics. The proposed measurement model is based on the Goal Question Metric technique and complemented with a set of mathematical formulae. We show the effectiveness of the metrics by using an illustrative example as a proof-of-concept together with a preliminary usability study.

A methodology for designing information security feedback based on User Interface Patterns

A methodology is provided here to assist in the design of secure interactive applications. In particular, this methodology helps design an adequate security information feedback based on User Interface Patterns, the resulting feedback is then evaluated against a set of design/evaluation criteria called Human-Computer Interaction for Security (HCI-S). In case of a security issue the security information feedback is generally presented using the visual and auditory channels required to achieve an effective notifications, and it is explicitly specified in the design of user interfaces for secure web system.

A Structured Approach to Support 3D User Interface Development

Given its current state of the art, Model-Based UI Development (MBDUI) is able to fulfill the major requirements of desktop and mobile applications, such as form-based user interfaces that adapt to the actual context of use. More recent research deals with the development of 3D interactive multimodal environments. Though user-centered design is more and more driving the design of these environments, less attention is devoted to the development processes than to interactive tools supporting isolated phases in the realization process. In this paper we present an attempt to structure an approach to support 3DUIs development by introducing a MBDUI compliant method. The development method is articulated on three axes: models and their specification language, approach, and tools that support the method based on the underlying models.

Collaborative Methodologies for Writing Open Educational Textbooks: a State-of art Review

Este artigo apresenta fragmentos da experiencia e das contribuicoes do projeto “Paulo Freire Memoria e Presenca: preservacao e democratizacao do acesso ao patrimonio cultural brasileiro” para acoes envolvendo bibliotecas e arquivos, no que tange ao uso de softwares livres. Discorre sobre a metodologia do trabalho, bem como enumera os softwares utilizados nas atividades de digitalizacao, tratamento de textos, fotos, audios e videos, alem de apresentar as novas funcionalidades e customizacoes da plataforma de codigo aberto utilizada para disponibilizar ao publico todo o acervo. Por fim, apresenta alguns dos desafios encontrados e aponta as perspectivas para o futuro.O presente estudo teve como objetivo analisar o movimento instituido pelos professores em formacao, no curso oferecido pelo grupo do UCA na Bahia, ao buscar respostas para questoes relacionadas as dimensoes tecnicas, teoricas e praticas para a insercao dos laptops na sala de aula. Para esse estudo, a partir de uma pesquisa exploratoria, priorizamos as discussoes dos professores no forum do Moodle, por ser uma interface que potencializa a colaboracao entre os interagentes e porque agrega, no mesmo recurso, os professores de todas as escolas, o que possibilita a elaboracao de uma visao de todo o contexto do PROUCA na Bahia.Este projeto tem como ideia central refletir como as multiplas possibilidades e conhecimentos embutidos nas padronagens dos tecidos africanos, suas conexoes com os aspectos historico-culturais e linguisticos podem ser incorporados em sala de aula e contribuir com a educacao. Vivencias compartilhadas sao registradas, descritas e analisadas. Entrelacando esses focos, busco interpretar e compreender os sentidos e os significados que esses alunos dao as experiencias vividas durante o projeto. Todos esses elementos se entrelacam e comunicam e nos comunica algo sobre nosso territorio, nossa cultura, nossa lingua, enfim, nossa historia.A falta de motivacao e a principal causa do desinteresse dos alunos, quase sempre acarretado pela metodologia utilizada nas aulas tradicionais. Neste trabalho procurou-se demonstrar que os jogos podem colaborar no processo de ensino e aprendizagem de forma diferenciada, dinâmica e atrativa, promovendo alem de prazer e divertimento, a construcao do conhecimento, ao conectar os diferentes aspectos relacionados ao processo de aprendizagem, como cognicao, afeicao, socializacao e criatividade, utilizando-se do domino e do jogo do mico, adaptados dos jogos tradicionais, para trabalhar conteudos de Quimica Orgânica.O artigo, aqui apresentado, tem como objetivo compartilhar um projeto que iniciou-se, em 2008, na turma de alfabetizacao da Escola Municipal Neil Fioravanti da cidade de Dourados (MS). O mesmo visou o combate da pratica do bullying e a sua metodologia oportunizou a interface das areas de conhecimento, a exploracao da literatura infantil, do jornal e das TICs (tecnologias da informacao e comunicacao). Objetivou tambem, integrar a comunidade escolar e colaborar no desenvolvimento do (Plano de Metas Compromisso Todos Pela Educacao). Em 2009, foi premiado pelo MEC atraves do Premio Professores do Brasil. Em 2010, tornou-se um Programa Antibullying. Atualmente, continua em vigor e alcancou ate outro municipio.Este artigo reporta a experiencia de construcao de um projeto de jogo em ambiente imersivo, envolvendo as areas de Artes Visuais, Engenharia, Direito Ambiental e Lingua Inglesa (LI). Esse prototipo usa ambientes virtuais de aprendizagem e a tecnologia OpenSim para criacao do design do jogo e das atividades em LI. Os resultados sugerem que a construcao das fases do jogo, bem como os desafios que envolvem as atividades em LI e os conhecimentos interdisciplinares exigem a formacao de uma equipe que seja capaz de articular pressupostos teorico-metodologicos sobre jogos e conhecimentos tecnologicos, para garantir o desenvolvimento dos principios de um bom jogo. Resultados dessa experiencia serao apresentados no evento.A Educacao a Distância (EaD) esta cada vez mais presente nas instituicoes de ensino, principalmente com a adocao dos Ambientes Virtuais de Aprendizagem (AVA). Paralelo a isso e notoria a evolucao da industria de dispositivos moveis, disponibilizando no mercado uma rica variedade de tablets e smartphones. Surge entao o m-Learning que promove o ensino e a aprendizagem com mobilidade permitindo que alunos e professores extrapolem as barreiras da sala de aula atraves do uso de dispositivos moveis. Neste contexto, este artigo apresenta uma aplicacao que acessa os AVA por meio de dispositivos moveis, o Question Mobile. O objetivo do Question Mobile e permitir que atividades avaliativas por meio desses aparelhos sejam integrados aos AVA que possuem atividades de questionarios.

A Method to Design Information Security Feedback Using Patterns and HCI-Security Criteria

To design a user interface of a secure interactive application, a method is provided to designers with guidance in designing an adequate security information feedback using a library of user-interface design patterns integrating security and usability. The resulting feedback is then evaluated against a set of design/evaluation criteria called human–computer interaction for security (HCI-S). In this way, notifications combining visual and auditive channels required to achieve an effective feedback in case of a security issue are explicitly incorporated in the development life cycle.

Use of Agents to Realize a Federated Searching of Learning Objects

A traditional search applied in a federation of learning objects repositories consumes a lot of resources in time, large numbers of queries and registers. The main improvement proposed in this work is the insertion of agents approach in order to have pertinent results with less consuming resources and covering the expectations of user. An advantage to use the agent approach is possible to apply semantic searching of learning objects.

Towards Canonical Task Types for User Interface Design

Task models are the cornerstone of user-centred design methodologies for user interface design. Therefore, they deserve attention in order to produce them effectively and efficiently, while guaranteeing the reproducibility of a task model: different persons should in principle obtain the same task model, or a similar one, for the same problem. In order to provide user interface designers with some guidance for task modelling, a list of canonical task types is proposed that offers a unified definition of frequently used tasks types in a consistent way. Each task type consists of a task action coupled with a task object, each of them being written according to design guidelines. This list provides the following benefits: tasks are modelled in a more consistent way, their definition is more communicable and shared, task models can be efficiently used for model-driven engineering of user interfaces.

A Digital Ecosystem for the Collaborative Production of Open Textbooks: The LATIn Methodology

Access to books in higher education is an issue to be addressed, especially in the context of un-derdeveloped countries, such as those in Latin America. More than just financial issues, cultural aspects and need for adaptation must be considered. The present conceptual paper proposes a methodology framework that would support collaborative open textbook initiatives. This meth-odology intends to be the main guideline for a digital ecosystem for the collaborative production of open textbooks and has the potential to solve standing methodological problems of current ini-tiatives, such as Wikibooks and Connexions. The systems architecture and construction will be guided by six collaborative writing di-mensions: process, roles, timing, con-trolling, granularity, and writing groups. Each dimension will coordinate an as-pect of the collaborative work and is detailed in the methodology proposed in this paper. This paper is divided in the following parts: the first part introduces the sub-ject, being followed by an analysis of related works about collaboration and Computer-Supported Cooperative Work; in this section, some authors, ideas, and methodological aspects of collaborative writing are also discussed. Next, the paper shows the proposal of a Digital Ecosystem for the collaborative creation of open text-books, the six dimensions of this Ecosystem, and its respective descriptions. The work finishes with some conclusions about the proposal and the next steps needed to implement it in the real world.

Misuse pattern: spoofing web services

We present here a misuse pattern, Spoofing Web Services. A misuse pattern describes how a misuse is performed from the point of view of the attacker, what system units it uses and how, provides ways of stopping the attack by enumerating possible security patterns that can be applied for this purpose, and provides forensic information. This pattern is useful for designers and developers of web services, who can then avoid these situations following the prescriptions of the pattern. This pattern could also be a guide to know what happened and to correct the corresponding vulnerabilities that led to the attack. A web service spoofing misuse tries to impersonate the identity of a user, and then with the users credentials makes requests in his name, with the intention of accessing a specific web service.

Eye tracking-based behavioral study of users using e-voting systems

Abstract In recent years, a set of usability requirements for e-voting systems have been put into place. However, there is not a coherent perception of the exact content and scope of these requirements as yet. Various e-voting applications have been created with this very purpose, but they have not been totally effective due to their ease of usability. In order to find out what the critical issues are regarding usability for these types of applications, this paper carries out a study based on the user’s behavior while using two e-voting systems applications. This study has been carried out using the eye tracking technique through which it was possible to identify two problematic areas that affect their ease of use. With this technique, a visual tracking of the user’s eyes is done in order to analyze qualitatively (gaze and heat maps) and quantitatively (statistical) the different tasks that must be performed by the user. The results show that the applications have issues displaying non-relevant information as well as an absence in the system of specific steps in order to complete the process of voting successfully and avoid user mistakes. According to the above, the perception about the security of the system increases if the information included is clearer and understandable to the user.