No abstract

Usabilidad es un aspecto relevante en el análisis de la interfaz hombre-máquina, ya que se trata del diálogo que se establece entre sujetos, artefacto y calidad de uso e interacción que permite el sistema. Este trabajo presenta una heurística específica para la evaluación de juegos educativos, creada a partir de Game User Experience Satisfaction (GUESS) y, concomitantemente, las herramientas de evaluación de Nielsen. Para ello, se realizó una investigación aplicada con un enfoque cuantitativo-cualitativo - con la participación de 3 usuarios especializados y 4 usuarios potenciales en un juego educativo utilizado como estudio de caso. La elección de GUESS como punto de partida se debió a una revisión sistemática de la literatura sobre usabilidad. Según el modelo, se invitó a los usuarios a operar el juego educativo y presentar sus impresiones. A partir de los resultados seleccionados, se formuló una nueva herramienta de evaluación de uso, denominada E-GUESS. Con Educational-GUESS, introdujimos cambios dirigidos a temas pedagógicos y contenidos educativos que también busca dilucidar puntos importantes en el desarrollo de un juego educativo al permitir percepciones que son fácilmente ignorados durante la fase de diseño con la intención de superar la supuesta bipolaridad entre "divertido" y "educativo" en los juegos de software educativo. Otro aporte de la investigación fue el análisis de usabilidad realizado para el juego educativo utilizado en la recolección de datos. Este juego, que trata sobre el tema Tabla Periódica de Química y se encuentra en fase de validación, recibió valiosos aportes para ajustes en su jugabilidad.

Multimedia applications are usually limited to stimulating only two human senses: vision and hearing. Recent studies seek to expand the definition of multimedia applications to include stimuli for other human senses. In this way, sensory effects that should be triggered in synchrony with the audiovisual content being presented are included in the applications. By including sensory effects in multimedia, we aim to improve the Quality of Experience (QoE) with these mulsemedia environments. Usually, two approaches are being used for performing QoE evaluations these environments. The first, more common, is performed by subjective evaluation approaches, i.e. through questionnaires, interrogations, oral responses, etc. The second, rarer but growing, uses objective approaches by collecting physiological data from the user when dealing with the system being evaluated. Such data is gathered in real time or not, however, it is considered objective because it is "involuntary", that is, data is not the result of the user’s intention. This paper will address both the these methods to evaluate QoE and what the respective obstacles are when dealing with in mulsemedia systems.

In order to create immersive experiences in virtual worlds, we need to explore different human senses (sight, hearing, smell, taste, and touch). Many different devices have been developed by both industry and academia towards this aim. In this paper, we focus our attention on the researched area of thermal and wind devices to deliver the sensations of heat and cold against people’s skin and their application to human-computer interaction (HCI). First, we present a review of devices and their features that were identified as relevant. Then, we highlight the users’ experience with thermal and wind devices, highlighting limitations either found or inferred by the authors and studies selected for this survey. Accordingly, from the current literature, we can infer that, in wind and temperature-based haptic systems (i) users experience wind effects produced by fans that move air molecules at room temperature, and (ii) there is no integration of thermal components to devices intended for the production of both cold or hot airflows. Subsequently, an analysis of why thermal wind devices have not been devised yet is undertaken, highlighting the challenges of creating such devices.