Abstract
As narrativas textuais têm sido utilizadas de diversas formas na educação. Analisámos as narrativas empregues num caso de abordagem didática baseada em aprendizagem situada, autorregulação e corregulação das aprendizagens, e avaliação formativa, designada e-SimProgramming, numa unidade curricular (UC) de Engenharia Informática do ensino superior português a distância. Visou-se neste trabalho verificar quais as adaptações necessárias para a transposição destas narrativas para os formatos 2D (em BD, Banda Desenhada) e 3D, com a expetativa de impulsionar uma maior imersividade dos estudantes nas narrativas. A UC é desenvolvida em seis tópicos sequenciais com conteúdos e atividades acedidas pelos estudantes de forma assíncrona na platafor-ma Moodle. Neste contexto, a UC utiliza atualmente narrativas em formato textual, desenvolvidas utilizando a técnica OC2RD2, com o objetivo de provocar o sentimento de “imersão na história”. A metodologia aplicada neste ensaio de transposição foi a DSR Design Science Research, com vista a identificar métodos eficazes para essa transposição. Foram realizados dois ensaios na fase de Design do Artefato da DSR, de cocriação interdisciplinar, para a transposição das narrativas tex-tuais de um dos tópicos da UC. As ferramentas utilizadas nestes ensaios de transposição foram a Magic Board Theater (3D) e a Banda Desenhada Player (2D), descritas em trabalho anterior. Os ensaios de transposição foram realizados a partir da adaptação dos elementos (personagens e ce-nários) pré-existentes nas ferramentas, ou seja, descontextualizados dos idealizados para a UC. Na análise comparativa entre as plataformas 2D e 3D, constatou-se que a plataforma de visualização de BD atende melhor aos requisitos da UC em seu contexto de oferta a distância, tendo em consi-deração fatores como: visualização sem tempo pré-definido; acesso sem necessidade de grande largura de banda de Internet; conexão com ficheiros externos dentro do contexto dos diálogos (in-clusivamente ficheiros multimédia); responsividade e fácil integração com a plataforma Moodle e permite imprimir ou exportar as narrativas para formato externo. Pelos resultados preliminares é possível afirmar que a transposição dos elementos de narrativas textuais para BD é uma opção viável e a ser considerada para o uso de narrativas no Ensino Superior a Distância em Cursos de Informática na transição do nível básico para o avançado.

Abstract
In view of the strong market presence and leverage of major corporations involved in this topic, the most straightforward answer to the questions above is “No”. Nevertheless, multiple perspectives should be considered. Thus, along this article we reflect about the concept of “metaverse”, what parts of it exist today, and what is foreseen that makes this concept a much discussed game changer.

Abstract
The use of mobile conversations is increasing all around the world. A conversational agent (CA) is mostly useful due to the fast response times and their simple nature. Recently, we have seen the development and increasing use of dialog systems on the Web. A conversational agent (CA) is a system capable of conversing with a user in natural language, in a way that it simulates a human dialog. Examples of CA can be found in several areas, including healthcare, entertainment, business, and education. In this paper a state of the art review of these dialog systems is presented, comprising different categories, different approaches and trends. The purpose of this work is to identify and compare the main existing approaches for building CA, categorizing them and highlighting the main strengths and weaknesses. Furthermore, it seeks to contextualize their use in an educational context and to discover the issues related to this task that may help in the choice of future investigations in the area of conversational natural language processing in educational context.

Abstract
Second Life (SL), a widely used Three-Dimensional Virtual World (3DVW), is being used as a tool for eLearning because of its interaction capabilities. On the other hand, accessibility is growing as a requirement for eLearning software tools, mainly because it can be an important factor for the learning process success by the impaired. In this paper we evaluate the accessibility of SL under WCAG 2.0/2.1 principles, and compare it with Moodle, which is a widely used web-based eLearning tool. We found that neither Moodle nor SL complies with accessibility under WCAG 2.0/2.1 rules, but SL does present itself as more accessible than Moodle. Moreover, WCAG 2.0/2.1 has several requirements specific for web pages, although they do not apply to 3DVWs. In this study, we intent to give a step forward towards evaluating emerging 3D virtual environments, like Metaverse, in the context of accessibility in the eLearning tools.

Abstract

Abstract
This paper presents an educational resource to support the teaching of Portuguese sign language. This educational resource emerges in response to the significant needs for the development of adequate digital tools to support deaf people in different tasks, especially in the language learning process. This work is motivated by the results and conclusions from previous studies that identify augmented reality as one of the promising solutions to improve the learning and teaching processes, and benefits from the advances already accomplished in the development and application of augmented reality solutions in several domains of the educational environment. The educational resource presented in this work is an augmented reality solution that enables associating hand gestures, representative of Portuguese sign language, to different cards, which represent different letters of the alphabet. In this way, it is possible to associate the alphabet letters with the respective gestures in a visual and straightforward way, facilitating the learning process.