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Publications

Publications by António Coelho

2017

Shifting from the Children to the Teens' Usability: Adapting a Gamified Experience of a Museum Tour

Authors
Cesario, V; Radeta, M; Coelho, A; Nisi, V;

Publication
HUMAN-COMPUTER INTERACTION - INTERACT 2017, PT IV

Abstract
In this poster, we are addressing the topic of "system's evaluation" from the point of view of assessing the usability of a gamified experience with 20 teenagers aged 15-17 years. The currently tested experience was ideally designed for children 9-10 years. In order to adapt the application to teenagers, we tested it with 20 targeted users. In this poster, we share the results and encourage a discussion among the researchers about how to adapt the gamified experience designed for children to a teenage audience.

2017

Mobile Location-Based Augmented Reality Applications for Urban Tourism Storytelling

Authors
Nobrega, R; Jacob, J; Coelho, A; Weber, J; Ribeiro, J; Ferreira, S;

Publication
2017 24 ENCONTRO PORTUGUES DE COMPUTACAO GRAFICA E INTERACAO (EPCGI)

Abstract
Creating a mobile urban tourism storytelling application presents several interactivity challenges on how to convey an engaging multimedia experience on-site. This article describes a methodology for fast prototyping of a multimedia mobile applications dedicated to urban tourism storytelling. The application can be a game that takes advantage of several locationbased technologies, freely available geo-referenced media, and augmented reality for immersive gameplay. The goal is to create serious games for tourism that follow a main narrative but where the story can automatically adapt itself to the current location of the player, assimilate possible detours and allow posterior out-of-location playback. Adaptable stories can use dynamic information from map sources such as points of interest (POI), elevation or virtual buildings. The main focus is for these locationbased storytelling games to create more engagement between the tourists and the urban environment. To explore this concept, an application was designed for the city of Porto: Unlocking Porto. This location-based game with a central, yet adaptable, story engages the player into the main sights following an augmented reality path while playing small games. The article discusses and presents solutions for media acquisition, interactive storytelling, game-design interface and multi-disciplinary coordination for mobile app development.

2017

Towards Player Adaptivity in Mobile Exergames

Authors
Jacob, J; Lopes, A; Nóbrega, R; Rodrigues, R; Coelho, A;

Publication
Advances in Computer Entertainment Technology - 14th International Conference, ACE 2017, London, UK, December 14-16, 2017, Proceedings

Abstract
Exergames require obtaining or computing information regarding the players’ physical activity and context. Additionally, ensuring that the players are assigned challenges that are adequate to their physical ability, safe and adapted for the current context (both physical and spatial) is also important, as it can improve both the gaming experience and the outcomes of the exercise. However, the impact adaptivity has in the specific case of virtual reality exergames still has not been researched in depth. In this paper, we present a virtual reality exergame and an experimental design aiming to compare the players’ experience when playing both adaptive and regular versions of the game. © Springer International Publishing AG, part of Springer Nature 2018.

2015

LOCATION-BASED TOURISM IN-GAME CERTIFICATION

Authors
Baptista, R; Nobrega, R; Coelho, A; Vaz de Carvalho, CV;

Publication
INTED2015: 9TH INTERNATIONAL TECHNOLOGY, EDUCATION AND DEVELOPMENT CONFERENCE

Abstract
Serious games are starting to attain a higher role as learning tools in several and diversified contexts such as education and training. Serious games provide a favorable learning environment where mistakes can occur without real life penalty and students get instant feedback from challenges. The rules, behavior simulation, and feedback from the player's actions of the studied games, provide a realistic context for learning where failure and repetition can be a positive contribution to achieve success. These challenges are designed in accordance with the intended learning objectives and will self-adapt and repeat according to the student difficulty level while providing instant feedback. There is decisively an acquisition of knowledge and experience through: (1) motivating and engaging environments, (2) approaches to problem solving and simulation of different situations, and also, (3) from contexts where players can develop professional skills. However, how do we certify acquired knowledge and competencies? Until now, most research has been focused on the evaluation of the game itself rather than on the learners' assessment. The analysis of the player is usually performed at the end of the game using traditional questionnaire forms. Instead of that, using our Correlation Matrix methodology [15], we provide a set of guidelines for game designers to build specific games for the certification of competences, and an in-game assessment in location-based cultural heritage applications. This assessment can be done with in-game mechanics and challenges providing a learning path to obtain the intended competences. These guidelines are established on a triad of components: Competencies/Mechanics/Play, following the approach of Casper Harteveld (Play/Meaning/Reality) [19]. This is needed for balancing the relationship between the game mechanics for serious games genres, the array of competences to certify, and the game elements. This paper presents a matrix of generic skills, based on the Education Competences [12] which serves as a reference to identify which competencies must be used to obtain the performance success of each situation. Based on the combination of identified competencies and the training game genres, this choice allows the identification of the most appropriate and necessary mechanics and challenges by comparison with a correlation matrix between competencies and game genre analysis with 120 serious games. Currently this methodology is being applied in the context of tourism guide's applications with the key objective of identifying ability patterns correlated in acquiring different skills (multiplex). In the tourism guide's context these skills could be planning and organizing the city exploration through challenges and targets to achieve, and successful assess heritage knowledge by quizzes or photos taken. As a result, existing game mechanics are identified and new ones are created and implemented in a Location-Based Gaming (LBG) platform to support more learning and to better interact with the heritage sites. As a case study the guidelines will be applied to a tourism mobile route application, about Porto heritage, to provide an improved design so that it may also be capable of in-game certification of tourism guides.

2013

METHODOLOGY FOR CREATING A COMPETENCES CERTIFICATION CORRELATION MATRIX

Authors
Baptista, R; Goncalves, R; Coelho, A; de Carvalho, CV;

Publication
6TH INTERNATIONAL CONFERENCE OF EDUCATION, RESEARCH AND INNOVATION (ICERI 2013)

Abstract
Serious Games are games where the entertainment aspect is not the most relevant purpose. Beyond the motivation as key for the success, Serious Games have challenging goals; they are fun to play and/or engaging; they incorporate some concepts of scoring; and they impart skills, knowledge and attitudes that can be applied in the real world. The growing interest on this type of game results from several factors such as: the theoretical grounding in different learning theories, the development of high-quality gaming experiences, the increased offer of collaboration and competition in multiplayer modes and the opportunity for integrated assessment. This technology can be applied to aid players developing professional skills, but how do we certify the acquired knowledge and skills? This paper proposes a new approach based on serious game for competencies certification using in-game validation. A new correlation matrix is defined associating the game mechanics of serious games and an array of competences, identifying the most suitable game mechanics for each specific competence. This generic matrix represents the results of the analysis about what the student should learn, understand and be able to do after they complete the learning process for a specific task or job position (competencies) and the most adequate game mechanics. Lominger's set of sixty seven competences becomes a universal common denominator as most of these competencies lead to task success which allowed its author, in collaboration with Microsoft, to create a similar approach, but this one focused solely on education and learning: The Educational Competency Wheel. This new approach is based on a set of success factors which can be mapped into required attributes, behaviors, areas of knowledge, skills and abilities for successful performance. With this paper we describe the strategy used to build the generic correlation. The applicability of this generic matrix will be done in four steps. Firstly it is necessary to identify which specific situations can take advantage from a game learning approach. The second step is the definition of the learning target group competencies profiles. In this step, the Education Competences serves as a reference to identify which one or combination of competencies must be used to obtain the performance success of each situation. The third step is obtaining the correlation matrix from the generic matrix, identifying the required game mechanics and the quantification of minimum uses of each mechanic. The fourth and final step is the game development that includes an assessment competency model to evaluate the learning progression and training competencies, guaranteeing the successful performing of each situation.

2013

METHODOLOGY FOR IN-GAME CERTIFICATION IN SERIOUS GAMES

Authors
Baptista, R; Coelho, A; de Carvalho, CV;

Publication
EDULEARN13: 5TH INTERNATIONAL CONFERENCE ON EDUCATION AND NEW LEARNING TECHNOLOGIES

Abstract
Serious games are starting to attain a higher role as tools for learning in various contexts, but in particular in areas such as education and training. Due to its characteristics, such as rules, behavior simulation and feedback to the player's actions, serious games provide a favorable learning environment where errors can occur without real life penalty and students get instant feedback from challenges. These challenges are in accordance with the intended objectives and will self-adapt and repeat according to the student's difficulty level. Through motivating and engaging environments, which serve as base for problem solving and simulation of different situations and contexts, serious games have a great potential to aid players developing professional skills. But, how do we certify the acquired knowledge and skills? With this work we intend to propose a methodology to establish a relationship between the game mechanics of serious games and an array of competences for certification, evaluating the applicability of various aspects in the design and development of games such as the user interfaces and the gameplay, obtaining learning outcomes within the game itself. Through the definition of game mechanics combined with the necessary pedagogical elements, the game will ensure the certification. This paper will present a matrix of generic skills, based on the European Framework of Qualifications, and the definition of the game mechanics necessary for certification on tour guide training context. The certification matrix has as reference axes: skills, knowledge and competencies, which describe what the students should learn, understand and be able to do after they complete the learning process. The guides-interpreters welcome and accompany tourists on trips and visits to places of tourist interest and cultural heritage such as museums, palaces and national monuments, where they provide various information. Tour guide certification requirements include skills and specific knowledge about foreign languages and in the areas of History, Ethnology, Politics, Religion, Geography and Art of the territory where it is inserted. These skills are communication, interpersonal relationships, motivation, organization and management. This certification process aims to validate the skills to plan and conduct guided tours on the territory, demonstrate knowledge appropriate to the context and finally match a good group leader. After defining which competences are to be certified, the next step is to delineate the expected learning outcomes, as well as identify the game mechanics associated with it. The game mechanics, as methods invoked by agents for interaction with the game world, in combination with game elements/objects allows multiple paths through which to explore the game environment and its educational process. Mechanics as achievements, appointments, progression, reward schedules or status, describe how game can be designed to affect players in unprecedented ways. In order for the game to be able to certify tour guides, the design of the training game will incorporate a set of theoretical and practical tasks to acquire skills and knowledge of various transversal themes. For this end, patterns of skills and abilities in acquiring different knowledge will be identified.

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