Toni Granollers

Toni Granollers
Universitat de Lleida | UDL · Department of Computer and Industrial Engineerings

PhD in Computer Science (HCI)

About

177
Publications
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971
Citations

Publications

Publications (177)
Conference Paper
Nowadays, new technology continually is turning up and it has incorporated different interactive systems. In a parallel way, people use these technologies and they have to use IS to resolve their tasks without taking into account technology complexities. We consider that the user experience includes a lot of different paradigm that are able to prov...
Conference Paper
Full-text available
Web Content Management Systems (CMS) are traditionally used in institutions to allow web content management by people without technical skills. This study intends to check the influence of the CMS in the accessibility of the contents they handle. First, an accessibility analysis of six widely used CMS is performed base don the Authoring Tool Access...
Chapter
Full-text available
This paper presents an exhaustive review of the state of the university masters or graduate programs in the discipline of Human-Computer Interaction (HCI) and related areas up to 2020. This work has been done as part of the design and development process of a new interuniversity and international Master’s program graduate developed between the Univ...
Conference Paper
This paper presents a proof of concept of an accessibility evaluation tool, EmpathicEditor4Accessibility. The tool was built upon Semiotic Engineering (SemEng) principles and following a User Centered Design method. SemEng provides tools to analyze interactive systems’ communicability, and offers a new perspective on how designers can match the use...
Conference Paper
Full-text available
Se llevaron a cabo evaluaciones heurísticas de usabilidad de reconoci-dos sitios de e-commerce, con alumnos de los últimos años de las carreras de Informática de la Universidad Nacional San Juan (Argentina), con el apoyo de la plataforma ReTLab, desarrollada por investigadores de universidades de España y Brasil. Este tipo de actividad permite el i...
Article
Methodologies for the development of interactive multimedia systems traditionally apply the practices and lifecycles of user-centred design in conjunction with usability and accessibility practices guided by software engineering process models. This work contributes to the conception of multimedia systems through a new way of working using a set of...
Article
Purpose Statistical charts are an essential source of information in academic papers. Charts have an important role in conveying, clarifying and simplifying the research results provided by the authors, but they present some accessibility barriers for people with low vision. This article aims to evaluate the accessibility of the statistical charts...
Chapter
Full-text available
This paper presents the wide review of the state of the university masters or graduate programs in the discipline of Human-Computer Interaction (HCI) and related areas up to 2020. This work has been done as part of the design and development process of a new interuniversity and international master's program graduate developed between the Universid...
Article
Different types of agile approaches and LEAN methodologies have guided the development of solutions based on a minimum viable product mainly from the product design and development body of the knowledge. However, these approaches offer generic practices for a wide variety of solutions. This study presents an original proposal that provides a vertic...
Preprint
Full-text available
Purpose: Statistical charts have an important role in conveying, clarifying and simplifying information, and have a significant presence in fields such as education, scientific research or journalism. Despite numerous advances in the field of digital accessibility, charts are still a challenge for people with low vision and color vision deficiency...
Article
Full-text available
Purpose: Statistical charts have an important role in conveying, clarifying and simplifying information, and have a significant presence in fields such as education, scientific research or journalism. Despite numerous advances in the field of digital accessibility, charts are still a challenge for people with low vision and color vision deficiency...
Article
La convergencia de tecnologías que se produce como resultado del desarrollo de los sistemas multimedia interactivos, constantemente plantea nuevos desafíos para los diseñadores de este tipo de soluciones, que no se reducen únicamente a un plano de su mediación tecnológica hardware-software. Este estudio presenta una aproximación que propone la apli...
Chapter
The usability and accessibility of 8 e-commerce websites (from five different sectors such as food, sports, fashion, electronics and DIY) were analysed by thirty-two evaluators. The assessment was done using the heuristic evaluation technique for usability and the Web Content Accessibility Guidelines (WCAG) 2.1 for accessibility. The results show h...
Article
The One Year of HCI Webinars in Spanish initiative enabled the creation of a shared understanding about the foundations of HCI in the Spanish-speaking context, which is fundamental to creating a specialized HCI cluster in Latin America. → The community around the HCI-Collab network is building a repository of completely free HCI educational resourc...
Article
A new set of heuristic indicators is presented for the evaluation of the accessibility of statistical charts for people with impaired vision and color vision deficiency (CVD), as well as a methodology for their application. To validate the proposal, a heuristic evaluation of the accessibility of 35 charts published in 5 Spanish and 2 international...
Chapter
Usability is taking an essential role in the software development process. Nowadays, many teams incorporate methods to verify if the graphical user interfaces of a software product in development, meet the required degree of usability. However, most of these methods, instead of providing a numerical value about the accomplishment of this quality at...
Conference Paper
Statistical charts play a primordial role in different areas of our life, such as information, education, communication or research. However, authors and content publishers do not always follow the accessibility criteria in the design and creation of this type of content. Considering these premises, this work includes the main approaches in which t...
Conference Paper
This work focuses on a study related with some of the main and recognized methodologies for Product Design and Development (PDD), centered on those aspects identified as most relevant and related with the practices for Multimedia Systems (MS) development, from disciplines such as Human-Computer Interaction (HCI), Software and Systems Engineering. T...
Chapter
The studies about systematic literature review (SLR) related with Multimedia and produced between 2011 and early of 2018, we found that are focused in the Multimedia Systems (MS) development for health sciences mainly. No SLR results were found centered in studies about methodologies or frameworks used for their development, practices and tools app...
Article
Full-text available
Cluster-based display walls provide cost-effective and scalable display infrastructures with high resolution and large display area, making them suitable for a wide range of high-resolution applications. As a consequence, a wide offer of new cluster display-wall platforms together with their software frameworks have been proposed. Their performance...
Chapter
The work presented here is born of the huge interest in usability, to be more precise, from the interest in evaluating this aspect in user interfaces. And, to be even more precise, from a substantial experience using one of the most used usability evaluation techniques, the Heuristic Evaluation.
Conference Paper
Full-text available
With the dissemination of mobile devices and the migration of activities that were once executed only on desktop computers to smartphones and tablets, the concerns related to accessibility in this environments have increased. However, the accessibility impact of mobile interface design patterns in the life of disabled people has not been widely add...
Conference Paper
This work shows the evolution of teaching HCI in the university studies of computer engineering at the University of Lleida. The progress is described in terms of the content and the teaching methodologies based on the experience acquired during the last 25 years. The article details the changes made in the different degrees, from the methodology t...
Conference Paper
Interaction pattern languages represent a solution to user-centered interface design problems. Throughout the years, different authors have dedicated their efforts to developing collections of patterns aimed at addressing usability issues. However, their authors have organized them in different ways, making it difficult to compare and transfer patt...
Conference Paper
Computer security is one of the most important current tasks in digital applications. However, from the best of our knowledge, there is little research for designing effective interfaces in the context of security management systems. Security problems for these systems include vulnerabilities, due to difficulty using the systems and poor user inter...
Article
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 o...
Article
This research aims to determine the status of usability evaluation methods in academic and industry settings in various Ibero-American countries. The authors conducted a survey taking into account four important aspects: personal information, information about usability evaluation methods, information about equipment, and main problems found. Their...
Conference Paper
An universal accessibility evaluation of the Moodle Mobile app from a study with 21 participants without disabilities is presented by assessing the emotional response to seven interaction design patterns and video analysis. Results show accessibility barriers identified during the execution of activities and implications of these barriers in the le...
Conference Paper
Currently, computer security is one of the most important tasks for supporting critical business process and protecting sensitive information. However, security problems for computer systems include vulnerabilities because they are hard to use and have poor user interfaces due to security constraints. Nowadays, finding a good trade-off between secu...
Conference Paper
This paper discusses our experiences in our last user experience experiment. The purpose of the experiment was to obtain qualitative and quantitative data about the user experience of modern mobile devices like smartwatches and smartphones in outdoor activities like mountain biking. We describe a specific method of running that kind of field experi...
Conference Paper
Este articulo muestra un trabajo que pretende dar validez a un conjunto de guias heuristicas especificamente disenadas para evaluar la Experiencia de Usuario (UX) en sitios web de comercio electronico. Para ello se ha analizado la heuristica propuesta en un trabajo previo-tanto en lo que refiere a la redaccion de las guias como a la particular form...
Conference Paper
Currently, computer security is one of the most important tasks. However, although there are works on the interfaces design secure and usable, it is necessary to perform an investigation to integrate these two attributes in a more easy way. Security problems for computer systems include vulnerabilities because they are hard to use and have poor use...
Article
Human-computer interaction (HCI) is a growing area. With the advent of new technologies and a continually expanding user population, there is a need for HCI professionals in both academia and software companies. The authors examine the state of the HCI discipline in Ibero-American countries for both academia and industry.
Article
Full-text available
En los últimos años se han publicado múltiples propuestas de conjuntos de patrones de interacción aplicables al diseño y al desarrollo de interfaces web. Paralelamente, la web semántica (WS) mejora los sitios web con contenidos semánticos. Este cambio de paradigma permite cuestionarse las tareas de usuario final, que pueden, para la WS, permanecer...
Conference Paper
Creating the layout of an application graphical user interface is an important part of any system development process. Mock-ups, usability studies, focus groups and sketching are techniques that help define this layout and ship the best UI for the required task. But with the addition of 3D depth into the GUI assortment, a gap is exposed when trying...
Article
Full-text available
Several user tests were carried out on people with a hearing impairment to evaluate the impact of different web accessibility barriers on two similar web sites, one accessible and the other not accessible. The tests’ focus was to analyze users’ moods when faced with different accessibility barriers. Results show “complex text” and “multimedia conte...
Conference Paper
Full-text available
In recent years there have been many proposals of lists of interaction patterns applicable to the design and development of web interfaces. Many of the patterns proposed in different lists are the same, perhaps with different names and different examples. Our purpose is to join these lists in a unified repository. This requires formalizing the defi...
Conference Paper
This paper intends to debate about two often-used terms in the field of designing interactive systems: Usability and User Experience (UX). The need comes from observing (in a non-empirical way) that both software and interface design industries, and even academia, use such terms interchangeably, without knowing clearly their exact meaning, accordin...
Conference Paper
Computer security is one of the more important tasks currently in the digital world. However, to the best of our knowledge, there is little research for designing effective interfaces in the context of security management systems. Security problems for these systems include vulnerabilities due to hard to use systems and poor user interfaces due to...
Conference Paper
This paper presents the results of a semiotic inspection of two web accessibility evaluation tools widely used for web editor tools: the Emphatic System Editor for Accessibility (EE4A) and the Test of Accessibility Web Content Manager system System (TAW-CMS). The Semiotic Inspection Method, from Semiotics Engineering, provides an analysis of the co...
Article
Full-text available
Nowadays, clusters of interconnected workstations have become a common solution for powering large composite displays, or “cluster display walls”, to visualize high resolution images. Our paper is focused on analyzing a specific cluster display wall developed by Google, named Liquid Galaxy, made up of heterogeneous commodity hardware with different...
Article
Media monitoring for emerging risks has become an essential tool in public health. This approach also has the potential to deliver early warning of emerging risks to plant health. The European Food Safety Authority (EFSA) has launched a project in collaboration with the Joint Research Centre (JRC) of the European Commission to make use of the Medic...
Conference Paper
This article presents a proposal for avoiding accessibility errors in Web 2.0 contexts through a new concept of web editor that helps non-technical content writers to evaluate and repair accessibility errors. This proposal implements accessibility guidelines and pays special attention to communication issues following the semiotic engineering princ...
Article
With the aim of knowing the impact of accessibility problems on persons with motor impairments, we did a user test with this user group. The focus of the test was the analysis of a user’s mood relative to different accessibility barriers comparing two parallel web pages: an accessible one and a non-accessible one. The study identified web forms and...
Article
Full-text available
Two versions of a website, a non-accessible site (NA-website) and an accessible site (A-website), were tested by 13 participants who were: a) blind users, b) low-vision users and c) users without identified disabilities. The mood of the users and their interaction efficiency, effectiveness and satisfaction were recorded as they encountered several...
Conference Paper
There is a large number and variety of processes to achieve a certain goal; however, a lot of these processes have been designed to be carried out in individual work environments. For that reason, in the area of Collaboration Engineering it has been proposed a Methodology for the Development of Collaborative Processes, which allows obtaining the co...
Conference Paper
Full-text available
In order to focus the evaluation of Learning Management Systems (LMS) to the interpretation and analysis of specific emotions, we propose in this paper a "base list" of emotions which are obtained from related research that identified emotions evoked by students in academics environments. Two case studies in which students performed different activ...
Conference Paper
Full-text available
In order to make the Semantic Web reach "real world" end-users it is important to take into account Semantic Web usability. We focus our study of Semantic Web user tasks in end-user online applications, trying to contribute to establishing guidelines that help the adoption of the Semantic Web. However, as starting point, we take into account existi...
Conference Paper
Full-text available
Existe un gran número y variedad de procesos para alcanzar un determinado objetivo, sin embargo, una buena cantidad de ellos han sido concebidos para ser llevados a cabo en ambientes de trabajo individual. Por tal razón, desde el ámbito de la Ingeniería de la Colaboración surge la Metodología para el Desarrollo de Procesos Colaborativos, mediante l...
Conference Paper
Full-text available
Mashup tools are platforms that enable end users to combine components from multiple sources and thus create, deploy, and share their own web applications. The aim of this paper is to present and discuss the findings of two empirical studies on evaluation of mashup tools by means of subjective and objective measuring instruments. In the first study...
Conference Paper
The ISO/IEC 25062:2006 standard presents the Common Industry Format template for the user test results. This standard only considers usability results of a specific evaluation technique: the user test. Nowadays, more aspects apart from usability are considered to get a product quality. In addition, other evaluation methodologies are also very used...
Book
Full-text available
Uno de los propósitos principales del presente libro es el conjuntar y presentar a los lectores los fundamentos en el área de interacción humano computadora, además se complementa con múltiples temáticas que son relevantes y, por lo tanto, proporcionan un panorama más amplio sobre IHC. Además de los fundamentos, se incluyen también los siguientes t...
Conference Paper
Full-text available
As it has been shown in several studies, work in a collaborative manner leads to a better achievement of the goals. There is a large number and variety of processes to achieve a certain goal; however, a lot of these processes have been designed to be carried out in individual work environments. For that reason, in the area of Collaboration Engineer...
Book
Full-text available
El nivel académico que pretende abordar el libro es en las diferentes licenciaturas e ingenierías que consideren tópicos en el área de interacción humano computadora, así como los posgrados relacionados con la temática. El libro describe diferentes tipos de interacción que pueden ofrecer las aplicaciones interactivas donde a través de la interfaz g...
Article
Full-text available
p>En el presente artículo se da a conocer una propuesta para la identificación y análisis de las características del comportamiento de los usuarios mientras participan en un proceso de evaluación de sitios web. Las características del comportamiento con la expresión facial, dirección de la mirada, postura, movimientos de la cabeza y gestos. Se pres...
Article
This paper presents a critical analysis of the current socio-economic situation associated with the technology used by disabled people. It explains how companies, funding agencies, and users can promote good practices for overcoming existing barriers. In addition, the article discusses different considerations with the intention of forcing the read...
Chapter
As it has been shown in several studies, work in a collaborative manner leads to a better achievement of the goals. There is a large number and variety of processes to achieve a certain goal; however, a lot of these processes have been designed to be carried out in individual work environments. For that reason, in the area of Collaboration Engineer...
Conference Paper
Full-text available
Usability evaluation is one of the most important stages inside the user-centered design. Heuristic evaluation is a highlighted method due to its great capability to detect a high number of usability issues, its low cost and simplicity; however, the search and selection of the best heuristics is probably the most difficult task of the methodology....
Conference Paper
Usability evaluation is one of the most important stages inside the user-centered design. Heuristic evaluation is a highlighted method due to its great capability to detect a high number of usability issues, its low cost and simplicity; however, the search and selection of the best heuristics is probably the most difficult task of the methodology....
Conference Paper
We present preliminary work towards the inclusion of emotions during the evaluation of interactive systems. Our approach comprises four major phases: Selection of relevant emotions; analysis of relationships between emotions and interactive systems; selection of detection mechanisms; and application of evaluation methods.
Conference Paper
Open-HEREDEUX es una herramienta cuyo objetivo principal es el de asistir en el proceso de diseño y evaluación sobre la experiencia del usuario en el desarrollo de sistemas interactivos. La finalidad de esta comunicación es valorar su aceptación en un ambiente empresarial de desarrollo de sistemas interactivos concreto. Así, a lo largo de la presen...
Conference Paper
Full-text available
This document contains the results obtained after the formalization process applied to the "Model of Process of the Usability and Accessibility Engineering (MPIu+a)" with SPEM language and its implementation with the Eclipse Process Framework Composer tool (EPFC). MPIu+a proposes the inclusion of usability evaluation transversely during the develop...
Article
Full-text available
El presente artículo muestra el proceso, la investigación y los resultados de un análisis de usabilidad en los sitios web de las cooperativas agroalimentarias del sector frutícola y oleícola de la provincia de Lleida. El estudio nace de la necesidad de analizar el estado de la presencia y uso de Internet en general y de la web en particular para un...
Article
Full-text available
El presente artículo muestra el proceso, la investigación y los resultados de un análisis de usabilidad en los sitios web de las cooperativas agroalimentarias del sector frutícola y oleícola de la provincia de Lleida. El estudio nace de la necesidad de analizar el estado de la presencia y uso de Internet en general y de la web en particular para un...
Book
Full-text available
Traducción al castellano de la "Planificació del v'ideo accessible" http://hdl.handle.net/2445/34570
Book
Full-text available
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/34563
Book
Full-text available
Traducción al castellano de la gu'ia "Guia de contingut accessible: v'ideo" http://diposit.ub.edu/dspace/handle/2445/34563
Book
Full-text available
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/34563
Book
Full-text available
Se puede consultar el libro completo en: http://hdl.handle.net/2445/45372
Book
Full-text available
Traducción al castellano de la "Gu'ia de audiodescripción (Capscribe)" http://diposit.ub.edu/dspace/handle/2445/34572 Ahora es mejor usar la herramienta CADET http://ncamftp.wgbh.org/cadet/