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José Molina

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As a member of the LoUISE (Laboratory of User Interaction and Software Engineering) research group at UCLM, Spain, I am interested in new paradigms of interaction, mainly Virtual Reality. In this research field, my favourite topics are: 3D user interfaces, with special focus on interaction tasks, interaction techniques and controls

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Jean Vanderdonckt

UCLouvain (University of Louvain)

Juan Manuel Gonzalez Calleros

(Benemérita) Universidad Autónoma de Puebla

Jean Vanderdonckt

UCLouvain (University of Louvain)

Juan Manuel Gonzalez Calleros

Benemérita Universidad Autónoma de Puebla (BUAP)

Quentin Limbourg

Université libre de Bruxelles

Philippe Palanque

Applied Science University

Josefina Guerrero

Enrique Lazcorreta Puigmartí

Universidad Miguel Hernandez

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Papers by José Molina

Rapid Prototyping of Distributed User Interfaces

Computer-Aided Design of User Interfaces V, 2007

This paper introduces a software tool for rapid prototyping of interactive systems whose user int... more This paper introduces a software tool for rapid prototyping of interactive systems whose user interfaces could be distributed according to four axes defined in a design space: type of computing platform, amount of interaction surfaces, type of interaction surface, and type of user interface. This software is based on a virtual toolkit for rendering the user interfaces in a virtual world depicting the real world in which the distribution occurs. The virtual toolkit consists of a layer for rendering a concrete user interface specified in a user interface description language. This paper presents its extension to modeling the external environment in terms of the design space so as to render the context of use in which the user interfaces are distributed. For each axis, a pair of functions enables exploring the axis in decreasing and increasing order so as to explore various situations of distribution, axis by axis, or in a combined way. As the interfaces resulting from this rendering are truly executable ones, this system provides designers with an acceptable means for generating ideas about how a user interface can be distributed in a context of use, and helps to evaluate the quality of a solution at an early design stage. Four representative situations located on the design space are implemented and discussed: distribution in a multi-platform context, distribution of the workplace, ubiquitous computing, and ambient intelligence, thus proving the coverage of the design space and the capabilities of the whole system.

Even Better Than Reality: The Development of a 3-D Online Store that Adapts to Every User and Every Platform

This paper describes the development of an e-commerce Web site based on a virtual world that repl... more This paper describes the development of an e-commerce Web site based on a virtual world that replicates a real store in order to offer a more familiar interface to the user, but overcoming the problems of reality offering a customized presentation of items to each consumer. An ethnographic study of a real store was made first in order to gather the requirements of store, and to identify the main processes that it involves. Early designs of the interface were evaluated by means of paper prototypes. Then, technology was assessed and a decision was made to carry on the development using VRML97 and Java. The system architecture is based on a client/server model, where the server manages the description of the items, the 3D models that are rendered in the interface, the recorded information of registered users and the adaptation rules. For the adaptation of the system to the each possible target platform, different levels of detail are used for each 3D model, and for the adaptation to th...

An Evaluation of Targeting Accuracy in Immersive First- Person Shooters Comparing Different Tracking Approaches and Mapping Models

Abstract: Immersive Virtual Environments typically rely on a tracking system that captures the po... more Abstract: Immersive Virtual Environments typically rely on a tracking system that captures the position and orientation of the head and hands of the cyber-user. Tracking devices, however, are usually quite expensive and require a lot of free space around the user, preventing them from being used for gaming at home. In contrast with these expensive capture systems, the use of inertial sensors (accelerometers and gyroscopes) to register orientation is spreading everywhere, finding them in different control devices at affordable prices, such as the Nintendo Wiimote. With a control like this, the player can aim at and shoot the enemies like holding a real weapon. However, the player cannot turn the head to observe the world around because the PC monitor or TV remains in its place. Head-mounted displays, such as the Oculus Rift, with a head-tracker integrated in it, allows the player to look around the virtual world. Even if the game does not support the head-tracker, it can still be use...

A Model of Interaction for CVEs Based on the Model of Human Communication

Abstract: This paper summarizes a model of interaction for CVEs inspired by the process followed ... more Abstract: This paper summarizes a model of interaction for CVEs inspired by the process followed in human communication in the real world, detailing both the main elements and the communication process itself. The model proposed copies some properties of the real world communication but also allows the easy integration of Task Analysis to the design of CVEs, helping the developer in the design of the application. Furthermore, some of the benefits that the usage of this model brings to the user are also shown. Finally, some implementation details of a prototype supporting the described model are given. This prototype is used all along the paper to illustrate the explanation of some parts of the model.

A Multi-Agent System Architecture for the Adaptation of User Interfaces

Abstract. Nowadays the design of user interfaces has become a discipline of great importance in S... more Abstract. Nowadays the design of user interfaces has become a discipline of great importance in Software Engineering, mainly due to the increasing impact that a high quality user interface has in the success of a software product. However, the growing diversity in interaction devices and techniques has raised a big expectation for the design of both methods and architectures able to cope with context of use heterogeneity issues in an intelligent way. Multi-agent systems jump into scene as an alternative to design the adaptation capabilities required to cope with this problem in a natural manner. 1 1

Developing VR applications : the TRES-D methodology

This paper presents the TRES-D methodology for the development of VR application, and identifies ... more This paper presents the TRES-D methodology for the development of VR application, and identifies opportunities for creating tools that are non-VR expert friendly. This methodology is based on previous approaches in the creation of virtual worlds, both on observed practice and proposed methods, and also on methods and techniques form the software engineering and computer-human interaction domains. That previous work is also explored in detail.

Distributed User Interfaces in Ambient Environment

by Hildeberto Mendonca and José Molina

Communications in Computer and Information Science, 2008

Before developing an Ambient Intelligence (AmI) application, it is often required to examine how ... more Before developing an Ambient Intelligence (AmI) application, it is often required to examine how its user interface will be distributed across the various interaction surfaces of its physical environment and which types of services these user interfaces will provide to end-users. For this purpose, a virtual reality rendering engine has been developed that renders a user interface model in a physical environment expressed by an environment model and a service model which enables designers to prototype the definition and the distribution of such user interfaces. After the modeling phase, the user interface is rendered in a virtual reality scene that may be subject to prototyping thanks to the model rendering engine. Any suggestion for modification applied on the underlying models (i.e., user interface, environment, and service) is propagated in the virtual reality scene. Depending on the interaction surface where a particular user interface is rendered, some adaptation rules may be performed expressed in terms of model-to-model transformations.

La Promoción de los estudios de Informática mediante la olimpiada de informática

Durante los ultimos anos las carreras de Informatica han sufrido un descenso generalizado en el n... more Durante los ultimos anos las carreras de Informatica han sufrido un descenso generalizado en el numero de alumnos. Esto ha provocado que muchas universidades hayan aumentado sus esfuerzos para acercar a los alumnos de secundaria a sus estudios y publicitarlos entre los posibles interesados. En esta ponencia se describe la Olimpiada de Informatica que desde hace cuatro anos venimos organizando en la Universidad de Castilla-La Mancha para la promocion de nuestras titulaciones entre los alumnos de secundaria de nuestra region. El interes en esta competicion ha ido creciendo ano a ano y hoy en dia se encuentra plenamente consolidada.

Adaptive, Multisensorial, Physiological and Social: The Next Generation of Telerehabilitation Systems

Frontiers in neuroinformatics, 2018

Some people require special treatments for rehabilitating physical, cognitive or even social capa... more Some people require special treatments for rehabilitating physical, cognitive or even social capabilities after an accident or degenerative illness. However, the ever-increasing costs of looking after an aging population, many of whom suffer chronic diseases, is straining the finances of healthcare systems around Europe. This situation has given rise to a great deal of attention being paid to the development of telerehabilitation (TR) systems, which have been designed to take rehabilitation beyond hospitals and care centers. In this article, we propose which features should be addressed in the development of TR systems, that is, they should consider adaptive, multisensorial, physiological and social aspects. For this aim, the research project Vi-SMARt is being conducted for evaluating whether and how different technologies, such as virtual reality (VR), multi-sensorial feedback, or telemonitoring, may be exploited for the development of the next generation of TR systems. Beyond trad...

Distributed User Interfaces in Ambient Environment

Constructing Ambient Intelligence, 2008

Before developing an Ambient Intelligence (AmI) application, it is often required to examine how ... more Before developing an Ambient Intelligence (AmI) application, it is often required to examine how its user interface will be distributed across the various interaction surfaces of its physical environment and which types of services these user interfaces will provide to end-users. For this purpose, a virtual reality rendering engine has been developed that renders a user interface model in a physical environment expressed by an environment model and a service model which enables designers to prototype the definition and the distribution of ...

Developing VR applications: the TRES-D methodology

This paper presents the TRES-D methodology for the development of VR application, and identifies ... more This paper presents the TRES-D methodology for the development of VR application, and identifies opportunities for creating tools that are non-VR expert friendly. This methodology is based on previous approaches in the creation of virtual worlds, both on observed practice and proposed methods, and also on methods and techniques form the software engineering and computer-human interaction domains. That previous work

An Approach to Develop User Interfaces with Plasticity

Lecture Notes in Computer Science, 2003

This paper provides an approach to develop user interfaces where plasticity is considered by usin... more This paper provides an approach to develop user interfaces where plasticity is considered by using several concepts, concretely our proposal is a pattern-based, component-oriented and model-based meta-level environment for developing user interfaces. Each one of these concepts will be used in order to develop user interfaces generated at runtime and them can be generated dynamically.

Enhancing collaborative manipulation through the use of feedback and awareness in CVEs

In the research community, Collaborative Virtual Environments (CVEs) developers usually refer to ... more In the research community, Collaborative Virtual Environments (CVEs) developers usually refer to the terms awareness and feedback as something necessary to maintain a fluent collaboration when highly interactive task have to be performed. However, it is remarkable that few studies address the effect that including special kind of awareness has on the task performance and the user experience.This paper proposes how to face the implementation of awareness in order to be taken into account early in the development of a CVE. In addition, it is also described an experiment that was carried out to evaluate the effect of providing some visual cues, showing that users tend to make more mistakes when they are not provided.

A framework to develop VR interaction techniques based on openinterface and AfreeCA

Implementing appropriate interaction for Virtual Reality (VR) applications is one of the most cha... more Implementing appropriate interaction for Virtual Reality (VR) applications is one of the most challenging tasks that a developer has to face. This challenge is due to both technical and theoretical factors. First, from a technical point of view, the developer does not only have to deal with nonstandard devices, he has to facilitate their use in a parallel a coordinated way, interweaving the fields of 3D and multimodal interaction. Secondly, from a theoretical point of view, he has to design the interaction almost from scratch, as a standard set of interaction techniques and interactive tasks has not been identified. All these factors are reflected in the absence of appropriate tools to implement VR interaction techniques. In this paper, some existing tools that aim at the development of VR interaction techniques are studied, analysing their strengths and, more specifically, their shortcomings, such as the difficulties to integrate them with any VR platform or their absence of a strong conceptual background. Following that, a framework to implement VR interaction techniques is described that provides the required support for multimodal interaction and, also, uses experience gained from the study of the former tools to avoid previous mistakes. Finally, the usage of the resulting framework is illustrated with the development of the interaction techniques of a sample application.

A Multi-agent System Architecture for the Adaptation of User Interfaces

Lecture Notes in Computer Science, 2005

Nowadays the design of user interfaces has become a discipline of great importance in Software En... more Nowadays the design of user interfaces has become a discipline of great importance in Software Engineering, mainly due to the increasing impact that a high quality user interface has in the success of a software product. However, the growing diversity in interaction devices and techniques has raised a big expectation for the design of both methods and architectures able to cope with context of use heterogeneity issues in an intelligent way. Multi-agent systems jump into scene as an alternative to design the adaptation capabilities required to cope with this problem in a natural manner. 1

An Interaction Model for the TRES-D Framework

MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference, 2006

Page 1. An Interaction Model for the TRES-D Framework José P. Molina, Arturo S. García, Diego M... more

The development of glove-based interfaces with the TRES-D methodology

Proceedings of the ACM symposium on Virtual reality software and technology - VRST '06, 2006

Page 1. The Development of Glove-based Interfaces with the TRES-D Methodology José P. Molina*, Ar... more

Collaborative Virtual Environments: You Can’t Do It Alone, Can You?

Lecture Notes in Computer Science, 2007

Many Collaborative Virtual Environments (CVEs) have been developed to date. However, when focusin... more Many Collaborative Virtual Environments (CVEs) have been developed to date. However, when focusing our attention on the way users perform their task in these systems, there is still little research on understanding the impact of different platforms on the collaboration experience. This paper describes not only a CVE, in this case, one that reproduces a block building game; but also an experiment that was carried out to evaluate both the interaction using different input and output technologies and the impact of collaboration on task performance and overall experience.

Evaluation of Text Input Techniques in Immersive Virtual Environments

New Trends on Human-Computer Interaction, 2009

transmitted, in any form or by any means, with the prior permission in writing of the publishers,... more transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms of licences issued by the Copyright Licensing Agency. Enquiries concerning reproduction outside those terms should be sent to the publishers. The use of registered names, trademarks, etc., in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant laws and regulations and therefore free for general use. The publisher makes no representation, express or implied, with regard to the accuracy of the information contained in this book and cannot accept any legal responsibility or liability for any errors or omissions that may be made.

VITAKI: A Vibrotactile Prototyping Toolkit for Virtual Reality and Video Games

International Journal of Human-Computer Interaction, 2014

ABSTRACT The use of haptics in virtual reality and video games has received growing attention as ... more ABSTRACT The use of haptics in virtual reality and video games has received growing attention as a means of enhancing the sensation of immersion in these environments. The sensation of touching virtual objects not only augments the impression of reality but also can improve the performance. However, the design of haptic interactions is not an easy task, and it usually needs a great effort due to the absence of powerful prototyping toolkits. Thus, this article proposes a vibrotactile prototyping toolkit for Eccentric Rotating Mass actuators named VITAKI. The main objective of this platform is to facilitate the prototyping and testing procedures of new vibrotactile interaction techniques for Virtual Reality and video games. A detailed description of the design of the system is provided, presenting the hardware and software elements that make up the VITAKI toolkit. In addition, its application to two different examples to illustrate its use is provided. Finally, a preliminary evaluation of this toolkit is presented. This evaluation is divided into two main stages. On one hand, a study of Olsen’s criteria is performed to analyze its general capabilities. On the other hand, a comparison with previously presented proposals is included too. These two analyses, together with other experiments where the devices created with the toolkit were tested by end users, highlight its main features and its advantages over other proposals.

Rapid Prototyping of Distributed User Interfaces

Computer-Aided Design of User Interfaces V, 2007

This paper introduces a software tool for rapid prototyping of interactive systems whose user int... more This paper introduces a software tool for rapid prototyping of interactive systems whose user interfaces could be distributed according to four axes defined in a design space: type of computing platform, amount of interaction surfaces, type of interaction surface, and type of user interface. This software is based on a virtual toolkit for rendering the user interfaces in a virtual world depicting the real world in which the distribution occurs. The virtual toolkit consists of a layer for rendering a concrete user interface specified in a user interface description language. This paper presents its extension to modeling the external environment in terms of the design space so as to render the context of use in which the user interfaces are distributed. For each axis, a pair of functions enables exploring the axis in decreasing and increasing order so as to explore various situations of distribution, axis by axis, or in a combined way. As the interfaces resulting from this rendering are truly executable ones, this system provides designers with an acceptable means for generating ideas about how a user interface can be distributed in a context of use, and helps to evaluate the quality of a solution at an early design stage. Four representative situations located on the design space are implemented and discussed: distribution in a multi-platform context, distribution of the workplace, ubiquitous computing, and ambient intelligence, thus proving the coverage of the design space and the capabilities of the whole system.

Even Better Than Reality: The Development of a 3-D Online Store that Adapts to Every User and Every Platform

This paper describes the development of an e-commerce Web site based on a virtual world that repl... more This paper describes the development of an e-commerce Web site based on a virtual world that replicates a real store in order to offer a more familiar interface to the user, but overcoming the problems of reality offering a customized presentation of items to each consumer. An ethnographic study of a real store was made first in order to gather the requirements of store, and to identify the main processes that it involves. Early designs of the interface were evaluated by means of paper prototypes. Then, technology was assessed and a decision was made to carry on the development using VRML97 and Java. The system architecture is based on a client/server model, where the server manages the description of the items, the 3D models that are rendered in the interface, the recorded information of registered users and the adaptation rules. For the adaptation of the system to the each possible target platform, different levels of detail are used for each 3D model, and for the adaptation to th...

An Evaluation of Targeting Accuracy in Immersive First- Person Shooters Comparing Different Tracking Approaches and Mapping Models

Abstract: Immersive Virtual Environments typically rely on a tracking system that captures the po... more Abstract: Immersive Virtual Environments typically rely on a tracking system that captures the position and orientation of the head and hands of the cyber-user. Tracking devices, however, are usually quite expensive and require a lot of free space around the user, preventing them from being used for gaming at home. In contrast with these expensive capture systems, the use of inertial sensors (accelerometers and gyroscopes) to register orientation is spreading everywhere, finding them in different control devices at affordable prices, such as the Nintendo Wiimote. With a control like this, the player can aim at and shoot the enemies like holding a real weapon. However, the player cannot turn the head to observe the world around because the PC monitor or TV remains in its place. Head-mounted displays, such as the Oculus Rift, with a head-tracker integrated in it, allows the player to look around the virtual world. Even if the game does not support the head-tracker, it can still be use...

A Model of Interaction for CVEs Based on the Model of Human Communication

Abstract: This paper summarizes a model of interaction for CVEs inspired by the process followed ... more Abstract: This paper summarizes a model of interaction for CVEs inspired by the process followed in human communication in the real world, detailing both the main elements and the communication process itself. The model proposed copies some properties of the real world communication but also allows the easy integration of Task Analysis to the design of CVEs, helping the developer in the design of the application. Furthermore, some of the benefits that the usage of this model brings to the user are also shown. Finally, some implementation details of a prototype supporting the described model are given. This prototype is used all along the paper to illustrate the explanation of some parts of the model.

A Multi-Agent System Architecture for the Adaptation of User Interfaces

Abstract. Nowadays the design of user interfaces has become a discipline of great importance in S... more Abstract. Nowadays the design of user interfaces has become a discipline of great importance in Software Engineering, mainly due to the increasing impact that a high quality user interface has in the success of a software product. However, the growing diversity in interaction devices and techniques has raised a big expectation for the design of both methods and architectures able to cope with context of use heterogeneity issues in an intelligent way. Multi-agent systems jump into scene as an alternative to design the adaptation capabilities required to cope with this problem in a natural manner. 1 1

Developing VR applications : the TRES-D methodology

This paper presents the TRES-D methodology for the development of VR application, and identifies ... more This paper presents the TRES-D methodology for the development of VR application, and identifies opportunities for creating tools that are non-VR expert friendly. This methodology is based on previous approaches in the creation of virtual worlds, both on observed practice and proposed methods, and also on methods and techniques form the software engineering and computer-human interaction domains. That previous work is also explored in detail.

Distributed User Interfaces in Ambient Environment

by Hildeberto Mendonca and José Molina

Communications in Computer and Information Science, 2008

Before developing an Ambient Intelligence (AmI) application, it is often required to examine how ... more Before developing an Ambient Intelligence (AmI) application, it is often required to examine how its user interface will be distributed across the various interaction surfaces of its physical environment and which types of services these user interfaces will provide to end-users. For this purpose, a virtual reality rendering engine has been developed that renders a user interface model in a physical environment expressed by an environment model and a service model which enables designers to prototype the definition and the distribution of such user interfaces. After the modeling phase, the user interface is rendered in a virtual reality scene that may be subject to prototyping thanks to the model rendering engine. Any suggestion for modification applied on the underlying models (i.e., user interface, environment, and service) is propagated in the virtual reality scene. Depending on the interaction surface where a particular user interface is rendered, some adaptation rules may be performed expressed in terms of model-to-model transformations.

La Promoción de los estudios de Informática mediante la olimpiada de informática

Durante los ultimos anos las carreras de Informatica han sufrido un descenso generalizado en el n... more Durante los ultimos anos las carreras de Informatica han sufrido un descenso generalizado en el numero de alumnos. Esto ha provocado que muchas universidades hayan aumentado sus esfuerzos para acercar a los alumnos de secundaria a sus estudios y publicitarlos entre los posibles interesados. En esta ponencia se describe la Olimpiada de Informatica que desde hace cuatro anos venimos organizando en la Universidad de Castilla-La Mancha para la promocion de nuestras titulaciones entre los alumnos de secundaria de nuestra region. El interes en esta competicion ha ido creciendo ano a ano y hoy en dia se encuentra plenamente consolidada.

Adaptive, Multisensorial, Physiological and Social: The Next Generation of Telerehabilitation Systems

Frontiers in neuroinformatics, 2018

Some people require special treatments for rehabilitating physical, cognitive or even social capa... more Some people require special treatments for rehabilitating physical, cognitive or even social capabilities after an accident or degenerative illness. However, the ever-increasing costs of looking after an aging population, many of whom suffer chronic diseases, is straining the finances of healthcare systems around Europe. This situation has given rise to a great deal of attention being paid to the development of telerehabilitation (TR) systems, which have been designed to take rehabilitation beyond hospitals and care centers. In this article, we propose which features should be addressed in the development of TR systems, that is, they should consider adaptive, multisensorial, physiological and social aspects. For this aim, the research project Vi-SMARt is being conducted for evaluating whether and how different technologies, such as virtual reality (VR), multi-sensorial feedback, or telemonitoring, may be exploited for the development of the next generation of TR systems. Beyond trad...

Distributed User Interfaces in Ambient Environment

Constructing Ambient Intelligence, 2008

Before developing an Ambient Intelligence (AmI) application, it is often required to examine how ... more Before developing an Ambient Intelligence (AmI) application, it is often required to examine how its user interface will be distributed across the various interaction surfaces of its physical environment and which types of services these user interfaces will provide to end-users. For this purpose, a virtual reality rendering engine has been developed that renders a user interface model in a physical environment expressed by an environment model and a service model which enables designers to prototype the definition and the distribution of ...

Developing VR applications: the TRES-D methodology

This paper presents the TRES-D methodology for the development of VR application, and identifies ... more This paper presents the TRES-D methodology for the development of VR application, and identifies opportunities for creating tools that are non-VR expert friendly. This methodology is based on previous approaches in the creation of virtual worlds, both on observed practice and proposed methods, and also on methods and techniques form the software engineering and computer-human interaction domains. That previous work

An Approach to Develop User Interfaces with Plasticity

Lecture Notes in Computer Science, 2003

This paper provides an approach to develop user interfaces where plasticity is considered by usin... more This paper provides an approach to develop user interfaces where plasticity is considered by using several concepts, concretely our proposal is a pattern-based, component-oriented and model-based meta-level environment for developing user interfaces. Each one of these concepts will be used in order to develop user interfaces generated at runtime and them can be generated dynamically.

Enhancing collaborative manipulation through the use of feedback and awareness in CVEs

In the research community, Collaborative Virtual Environments (CVEs) developers usually refer to ... more In the research community, Collaborative Virtual Environments (CVEs) developers usually refer to the terms awareness and feedback as something necessary to maintain a fluent collaboration when highly interactive task have to be performed. However, it is remarkable that few studies address the effect that including special kind of awareness has on the task performance and the user experience.This paper proposes how to face the implementation of awareness in order to be taken into account early in the development of a CVE. In addition, it is also described an experiment that was carried out to evaluate the effect of providing some visual cues, showing that users tend to make more mistakes when they are not provided.

A framework to develop VR interaction techniques based on openinterface and AfreeCA

Implementing appropriate interaction for Virtual Reality (VR) applications is one of the most cha... more Implementing appropriate interaction for Virtual Reality (VR) applications is one of the most challenging tasks that a developer has to face. This challenge is due to both technical and theoretical factors. First, from a technical point of view, the developer does not only have to deal with nonstandard devices, he has to facilitate their use in a parallel a coordinated way, interweaving the fields of 3D and multimodal interaction. Secondly, from a theoretical point of view, he has to design the interaction almost from scratch, as a standard set of interaction techniques and interactive tasks has not been identified. All these factors are reflected in the absence of appropriate tools to implement VR interaction techniques. In this paper, some existing tools that aim at the development of VR interaction techniques are studied, analysing their strengths and, more specifically, their shortcomings, such as the difficulties to integrate them with any VR platform or their absence of a strong conceptual background. Following that, a framework to implement VR interaction techniques is described that provides the required support for multimodal interaction and, also, uses experience gained from the study of the former tools to avoid previous mistakes. Finally, the usage of the resulting framework is illustrated with the development of the interaction techniques of a sample application.

A Multi-agent System Architecture for the Adaptation of User Interfaces

Lecture Notes in Computer Science, 2005

Nowadays the design of user interfaces has become a discipline of great importance in Software En... more Nowadays the design of user interfaces has become a discipline of great importance in Software Engineering, mainly due to the increasing impact that a high quality user interface has in the success of a software product. However, the growing diversity in interaction devices and techniques has raised a big expectation for the design of both methods and architectures able to cope with context of use heterogeneity issues in an intelligent way. Multi-agent systems jump into scene as an alternative to design the adaptation capabilities required to cope with this problem in a natural manner. 1

An Interaction Model for the TRES-D Framework

MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference, 2006

Page 1. An Interaction Model for the TRES-D Framework José P. Molina, Arturo S. García, Diego M... more

The development of glove-based interfaces with the TRES-D methodology

Proceedings of the ACM symposium on Virtual reality software and technology - VRST '06, 2006

Page 1. The Development of Glove-based Interfaces with the TRES-D Methodology José P. Molina*, Ar... more

Collaborative Virtual Environments: You Can’t Do It Alone, Can You?

Lecture Notes in Computer Science, 2007

Many Collaborative Virtual Environments (CVEs) have been developed to date. However, when focusin... more Many Collaborative Virtual Environments (CVEs) have been developed to date. However, when focusing our attention on the way users perform their task in these systems, there is still little research on understanding the impact of different platforms on the collaboration experience. This paper describes not only a CVE, in this case, one that reproduces a block building game; but also an experiment that was carried out to evaluate both the interaction using different input and output technologies and the impact of collaboration on task performance and overall experience.

Evaluation of Text Input Techniques in Immersive Virtual Environments

New Trends on Human-Computer Interaction, 2009

transmitted, in any form or by any means, with the prior permission in writing of the publishers,... more transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms of licences issued by the Copyright Licensing Agency. Enquiries concerning reproduction outside those terms should be sent to the publishers. The use of registered names, trademarks, etc., in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant laws and regulations and therefore free for general use. The publisher makes no representation, express or implied, with regard to the accuracy of the information contained in this book and cannot accept any legal responsibility or liability for any errors or omissions that may be made.

VITAKI: A Vibrotactile Prototyping Toolkit for Virtual Reality and Video Games

International Journal of Human-Computer Interaction, 2014

ABSTRACT The use of haptics in virtual reality and video games has received growing attention as ... more ABSTRACT The use of haptics in virtual reality and video games has received growing attention as a means of enhancing the sensation of immersion in these environments. The sensation of touching virtual objects not only augments the impression of reality but also can improve the performance. However, the design of haptic interactions is not an easy task, and it usually needs a great effort due to the absence of powerful prototyping toolkits. Thus, this article proposes a vibrotactile prototyping toolkit for Eccentric Rotating Mass actuators named VITAKI. The main objective of this platform is to facilitate the prototyping and testing procedures of new vibrotactile interaction techniques for Virtual Reality and video games. A detailed description of the design of the system is provided, presenting the hardware and software elements that make up the VITAKI toolkit. In addition, its application to two different examples to illustrate its use is provided. Finally, a preliminary evaluation of this toolkit is presented. This evaluation is divided into two main stages. On one hand, a study of Olsen’s criteria is performed to analyze its general capabilities. On the other hand, a comparison with previously presented proposals is included too. These two analyses, together with other experiments where the devices created with the toolkit were tested by end users, highlight its main features and its advantages over other proposals.