Investigando Natural User Interfaces (NUIs) : tecnologias e interação em contexto de acessibilidade

Orientador: Maria Cecília Calani BaranauskasTese (doutorado) - Universidade Estadual de Campinas, Instituto de ComputaçãoResumo: Natural User Interfaces (NUIs) representam um novo paradigma de interação, com a promessa de ser mais intuitivo e fácil de usar do que seu antecessor, que utiliza mouse e teclado. Em um contexto no qual as tecnologias estão cada vez mais invisíveis e pervasivas, não só a quantidade mas também a diversidade de pessoas que participam deste contexto é crescente. Nesse caso, é preciso estudar como esse novo paradigma de interação de fato consegue ser acessível a todas as pessoas que podem utilizá-lo no dia-a-dia. Ademais, é preciso também caracterizar o paradigma em si, para entender o que o torna, de fato, natural. Portanto, nesta tese apresentamos o caminho que percorremos em busca dessas duas respostas: como caracterizar NUIs, no atual contexto tecnológico, e como tornar NUIs acessíveis para todos. Para tanto, primeiro apresentamos uma revisão sistemática de literatura com o estado da arte. Depois, mostramos um conjunto de heurísticas para o design e a avaliação de NUIs, que foram aplicadas em estudos de caso práticos. Em seguida, estruturamos as ideias desta pesquisa dentro dos artefatos da Semiótica Organizacional, e obtivemos esclarecimentos sobre como fazer o design de NUIs com Acessibilidade, seja por meio de Design Universal, seja para propor Tecnologias Assistivas. Depois, apresentamos três estudos de caso com sistemas NUI cujo design foi feito por nós. A partir desses estudos de caso, expandimos nosso referencial teórico e conseguimos, por fim, encontrar três elementos que resumem a nossa caracterização de NUI: diferenças, affordances e enaçãoAbstract: Natural User Interfaces (NUIs) represent a new interaction paradigm, with the promise of being more intuitive and easy to use than its predecessor, that utilizes mouse and keyboard. In a context where technology is becoming each time more invisible and pervasive, not only the amount but also the diversity of people who participate in this context is increasing. In this case, it must be studied how this new interaction paradigm can, in fact, be accessible to all the people who may use it on their daily routine. Furthermore, it is also necessary to characterize the paradigm itself, to understand what makes it, in fact, natural. Therefore, in this thesis we present the path we took in search of these two answers: how to characterize NUIs in the current technological context, and how to make NUIs accessible to all. To do so, first we present a systematic literature review with the state of the art. Then, we show a set of heuristics for the design and evaluation of NUIs, which were applied in practical study cases. Afterwards, we structure the ideas of this research into the Organizational Semiotics artifacts, and we obtain insights into how to design NUIs with Accessibility, be it through Universal Design, be it to propose Assistive Technologies. Then, we present three case studies with NUI systems which we designed. From these case studies, we expanded our theoretical references were able to, finally, find three elements that sum up our characterization of NUI: differences, affordances and enactionDoutoradoCiência da ComputaçãoDoutora em Ciência da Computação160911/2015-0CAPESCNP

Human experience in the natural and built environment : implications for research policy and practice

22nd IAPS conference. Edited book of abstracts. 427 pp. University of Strathclyde, Sheffield and West of Scotland Publication. ISBN: 978-0-94-764988-3

Accessible software development: a conceptual model proposal

Equal access to all software and digital content should be a reality in the Digital Era. This argument is something defended both by existing regulations, norms and standards, and also business organizations and governments. Despite this acknowledgement, the reality is still far from the desired equality. For certain groups of disabled or impaired citizens, such as the visually impaired, the existence of e-accessibility compliance represents an opportunity to integrate, in a more simple and straightforward manner, their societies. Despite the existing poor results on e-accessibility compliance, the mentioned citizens insist on using digital devices in their daily lives. Even though, in the last decade, multiple standards and regulations have been published towards indicating how to develop accessible digital user interfaces, there are still two major issues surrounding its implementation: the complexity and disparity of the documents containing the abovementioned norms, and also the lack of e-accessibility know-how by software experts. With this in mind, a proposal for an accessible software development model that encompasses e-accessibility incorporation as one of the development process activities has been presented. This model might represent a very interesting support tool for software development organizations and a novel resource for learning and training institutions to be able to improve their computer science and informatics students’ skills on e-accessibility.This work was supported by national funds through the Portuguese Foundation for Science and Technology (FCT) under the Project UID/CEC/04524/2016. This work was financed by the ERDF—European Regional Development Fund through the Operational Program for Competitiveness and Internationalization—COMPETE 2020 within Project (POCI-01-0145-FEDER-006961), and by National Funds through the Portuguese funding agency, FCT— Fundação para a Ciência e a Tecnologia as part of Project (UID/EEA/50014/2013).info:eu-repo/semantics/publishedVersio

E-Governance: Strategy for Mitigating Non-Inclusion of Citizens in Policy Making in Nigeria

The Nigerian federation that currently has 36 states structure adopted the Weberian Public Administrative system before now as an ideal way of running government, which was characterized with the traditional way of doing things without recourse to the deployment of Information Communication Technology (ICT). Today e-governance is seen as a paradigm shift from the previous way of governance. Research has shown that, the adoption and implementation of e-governance is more likely to bring about effective service delivery, mitigate corruption and ultimately enhance citizens’ participation in governmental affairs. However, it has been argued that infrastructure such as regular electricity power and access to the Internet, in addition to a society with high rate of literacy level are required to effectively implement and realize the potentials of e-governance for improved delivery of services. Due to the difficulties currently experienced, developing nations need to adequately prepare for the implementation of e-governance on the platform of Information Communication Technology (ICT). Hence, this study seeks to examine whether the adoption and implementation of e-governance in the context of Nigeria would mitigate the hitherto non-inclusion of citizens in the formulation and implementation of government policies aimed at enhanced development. To achieve the objective of the study, data were sourced and analyzed majorly by examining government websites of 20 states in the Nigerian federation to ascertain if there are venues for citizens to interact with government in the area of policy making and feedback on government actions, as a way of promoting participatory governance. The study revealed that the adoption and implementation of e-governance in the country is yet to fully take place. This is due to lack of infrastructure, low level of literacy rate and government inability to provide the necessary infrastructure for e-governance to materialize. The paper therefore, recommends among others the need for the Federal Government to involve a sound and clear policy on how to go about the adoption and implementation of egovernance through deliberate effort at increasing budgetary allocation towards infrastructural development and mass education of citizens

The Impact of e-Democracy in Political Stability of Nigeria

The history of the Nigerian electoral process has been hitherto characterized by violence stemming from disputes in election outcomes. For instance, violence erupted across some states in Northern Nigeria when results indicated that a candidate who was popular in that part of the country was losing the election leading to avoidable loss of lives. Beside, this dispute in election outcome lingers for a long time in litigation at the electoral tribunals which distracts effective governance. However, the increasing penetrating use of ICTs in Nigeria is evident in the electoral processes with consequent shift in the behavior of actors in the democratic processes, thus changing the ways Nigerians react to election outcomes. This paper examines the trend in the use ICT in the Nigerian political system and its impact on the stability of the polity. It assesses the role of ICT in recent electoral processes and compares its impact on the outcome of the process in lieu of previous experiences in the Nigeria. Furthermore, the paper also examines the challenges and risks of implementing e-Democracy in Nigeria and its relationship to the economy in the light of the socio-economic situation of the country. The paper adopted qualitative approach in data gathering and analysis. From the findings, the paper observed that e-democracy is largely dependent on the level of ICT adoption, which is still at its lowest ebb in the country. It recognizes the challenges in the provision of ICT infrastructure and argues that appropriate low-cost infrastructure applicable to the Nigerian condition can be made available to implement e-democracy and thus arouse the interest of the populace in governance, increase the number of voters, and enhance transparency, probity and accountability, and participation in governance as well as help stabilize the nascent democrac

Inclusive Intelligent Learning Management System Framework

Machado, D. S-M., & Santos, V. (2023). Inclusive Intelligent Learning Management System Framework. International Journal of Automation and Smart Technology, 13(1), [2423]. https://doi.org/10.5875/ausmt.v13i1.2423The article finds context and the current state of the art in a systematic literature review on intelligent systems employing PRISMA Methodology which is complemented with narrative literature review on disabilities, digital accessibility and legal and standards context. The main conclusion from this review was the existing gap between the available knowledge, standards, and law and what is put into practice in higher education institutions in Portugal. Design Science Research Methodology was applied to output an Inclusive Intelligent Learning Management System Framework aiming to help higher education professors to share accessible pedagogic content and deliver on-line and presential classes with a high level of accessibility for students with different types of disabilities, assessing the uploaded content with Web content Accessibility Guidelines 3.0, clustering students according to their profile, conscient feedback and emotional assessment during content consumption, applying predictive models and signaling students at risk of failing classes according to study habits and finally applying a recommender system. The framework was validated by a focus group to which experts in digital accessibility, information systems and a disabled PhD graduate.publishersversionpublishe

The development and deployment of walkability assessment models for built environments

To encourage walking behavior, revising a built environment to be walkable is recognized as a necessity for influencing a broader audience while also having a long-term effect. Walkability, which indicates the friendliness of walking in a built environment, helps concerning parties to understand a urban context and make informative decisions when building walkable neighborhoods. Walkability is a fusion of different environment characteristics (e.g. sidewalk quality) influential to walking. Multiple instruments have been developed to measure perceived walkability by conducting surveys. However, this process is expensive and time-consuming. Matured GIS technologies together with extensive accessible data enable analysts to measure walkability objectively. While it is considerably inexpensive and time efficient, measuring walkability objectively has several challenging areas to tackle: the environmental characteristics to be considered, the methods to evaluate these characteristics, and the data availability to conduct the evaluation. To date, no existing model addresses those aspects appropriately. This thesis has developed models to objectively evaluate walkability for neighborhoods and walking routes. Through examining empirical studies that explored the relationship between walking and environment characteristics, this thesis has identified a few characteristics that are influential to walking and incorporated them into the area based walkability evaluation model: population density, destination accessibility, land use mix, walking infrastructure quality, aesthetics, traffic safety and transit accessibility. The importance of these characteristics changes when targeting different walking purposes (recreational or transportation), population groups, geographic locations and cultural contexts. By weighing each characteristic accordingly, the model adapts to different study contexts. The weights should be adjusted based on expert knowledge or by benchmarking empirical studies conducted in similar contexts (e.g. similar urban setting). For evaluating walkability for walking routes, Dijkstra's algorithm is adopted to identify the walkable routes by minimizing the cost associated with the routes. This cost is defined by route distance, street type (e.g. highway, sidewalk), infrastructure quality and facilities along the routes. As a case study, walkability is evaluated for the city of Helsinki. The implementation of the models has two purposes: 1) to provide a benchmark for analysts who intend to apply the model to other contexts, 2) to provide the environment quality information of Helsinki to concerning parties. Data processing, characteristics assessment, and walkability evaluation are described in detail to fulfill the first purpose. Secondly, a web application was developed to provide an accessible service for users to view the environment quality information including walkability. While walkability varies for individuals due to their personal preferences and needs, this service also allows customization by providing functionality to adjust weights of characteristics that are used to define walkability