Convenience and TAM in a ubiquitous computing environment: The case of wireless LAN

Yoon, Cheolho; Kim, Sang-Hoon

doi:10.1016/j.elerap.2006.06.009

Cited by 242 publications

(241 citation statements)

References 30 publications

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“…This ideal vision allows users to have perceived availability, and users seem to consider this as a criterion of the benefit or usefulness of cloud technologies. Perceived availability is the equivalent of perceived ubiquity in findings of ubiquitous technologies such as mobile TV (Shin, 2008), u-government (Belanger et al, 2005), wireless broadband (Shin, 2007), and wireless local area networks (Yoon & Kim, 2007). Through perceived availability, users feel psychological readiness to access computing resources at anytime.…”

Section: Removing the Obstacles To A Clear Cloud Future In Public Secmentioning

confidence: 99%

User centric cloud service model in public sectors: Policy implications of cloud services

Shin

2013

Government Information Quarterly

110

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Section: Removing the Obstacles To A Clear Cloud Future In Public Secmentioning

confidence: 99%

User centric cloud service model in public sectors: Policy implications of cloud services

Shin

2013

Government Information Quarterly

110

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“…The answers should be within a range of five points, ranging from 1 point (totally disagree) to 5 points (totally agree). To evaluate the model acceptability, checking the system usability, the questionnaires were defined based on the Technology Acceptance Model (TAM) (Yoon and Kim, 2007). The TAM model considers the following main themes for application acceptance: (i) Ease of Use: the degree in which users evaluating the application may reduce their effort; (ii) Usefulness: the degree in which users evaluating the application may improve their performance.…”

Section: Discussionmentioning

confidence: 99%

Toward a distributed architecture for context awareness in ubiquitous computing

Lopes

Gusmao

Duarte

et al. 2014

jacr

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IntroductionMark Weiser's classic article (Weiser, 1991), considered the precursor of Ubiquitous Computing, describes the basic assumptions of this computational paradigm: ubiquity and transparency. These assumptions generate several challenges related to user access to computing environment, anywhere, any time, with any device, non-intrusively, keeping the users' focus on their activities. In this perspective, computational systems must interact in an autonomic way, no matter where the user is, constituting a highly distributed, heterogeneous, dynamic and mobile environment (Costa et al., 2008;Caceres and Friday, 2012 Abstract. The applications in Ubiquitous Computing (UbiComp) environments must be aware of their contexts of interest and adapt to changes in them. Thus, a major research challenge in the area of UbiComp is related to context awareness. Considering the high distribution, heterogeneity, dynamism, and mobility of ubiquitous environments, this paper presents an architectural model for context awareness, called EXEHDA-UC (Execution Environment for Highly Distributed Applications -Ubiquitous Context awareness). The proposal includes elements to support contextual data acquisition, actuation in the environment, and processing of contextual information. We consider that the main contribution of this work is an architecture that supports the managing of the acquisition, storage, and processing of context data, in a distributed way, independently of the application, in an autonomic and rule-based perspective. To assess the functionalities of the EXEHDA-UC, we present a case study, highlighting the prototypes developed, technologies employed, and tests carried out.

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“…Para o autor, uma das principais estratégias utilizadas para avaliar a capacidade do middleware é através de aplicações experimenteis em que as experiências dos usuários podem ser exploradas de maneira explicita ou implícita. Nesse sentido, as funcionalidades do EXEHDA-SN foram avaliadas pelos utilizadores por meio do método TAM [15].…”

Section: Estudo De Casounclassified

“…O questionário foi construído com base no Modelo de Aceitação de Tecnologia (TAM), usando uma escala de Likert [15]. Para a aceitação da ferramenta, o modelo TAM considera: (i) Facilidade de uso: grau em que o usuário avalia que a ferramenta pode reduzir seu esforço; e (ii) Percepção de utilidade: grau em que o usuário avalia que a ferramenta pode melhorar a sua experiência.…”

Section: Avaliação De Aceitaçãounclassified

Gerenciamento proativo de redes de sensores na Ubicomp

Souza

Lopes

Gadotti

et al. 2015

Revista Brasileira De Computação Aplicada

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Resumo: Um dos aspectos centrais da Computação Ubíqua (Ubicomp) está associado a uma forte integração entre os sistemas computacionais e o meio ambiente. Um dos principais desafios da pesquisa na área é fornecer mecanismos para a consciência de contexto que promovam o desenvolvimento de aplicações que reajam de acordo com a dinâmica do ambiente de interesse do usuário. Com essa motivação foi concebido o EXEHDA-SN, um novo serviço para o middleware EXEHDA. O Middleware EXEHDA vem sendo desenvolvido para promover a execução distribuída adaptativa, a coleta e o reconhecimento do contexto, armazenamento e acesso ubíquo e comunicações assín-cronas. Nesse sentido, a principal contribuição deste artigo é a proposição do EXEHDA-SN como um serviço para o gerenciamento proativo das interações do Middleware com o ambiente físico, por meio de regras, empregando redes de sensores e atuadores. Para avaliar as funcionalidades do serviço proposto, apresentamos um estudo de caso na área agrícola, com destaque para os protótipos e testes realizados, cujos resultados se mostraram promissores.Palavras-chave: Ubicomp. Consciência do Contexto. Rede de Sensores. Abstract:One of the central aspects of Ubiquitous Computing (Ubicomp) is associated with a strong integration of computer systems and the environment. One of the main challenges of research in the area is to provide mechanisms for context-awar to promotes the development of applications that react according to the dynamics of user interest environment. With this motivation is designed the EXEHDA-SN, a new service for EXEHDA middleware. The EXEHDA Middleware has been developed to promote adaptive distributed execution, collect and recognition of context, storage and ubiquitous access and asynchronous communications. In this sense, the main contribution of this paper is the proposition of EXEHDA-SN as a service to the proactive management of the Middleware interactions with the physical environment, through rules, using sensors and actuators networks. To evaluate the functionalities of the proposed service, we present a case study in agriculture, highlighting the prototypes and tests performed. The results were promising.

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Convenience and TAM in a ubiquitous computing environment: The case of wireless LAN

Cited by 242 publications

References 30 publications

User centric cloud service model in public sectors: Policy implications of cloud services

User centric cloud service model in public sectors: Policy implications of cloud services

Toward a distributed architecture for context awareness in ubiquitous computing

Gerenciamento proativo de redes de sensores na Ubicomp

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