901 resultados para on-line condition monitoring


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Governments around the world are taking advantage of the numerous benefits offered by the World Wide Web in order to provide client services to citizens. Australia has been a leader in this trend. The literature in this area focuses primarily on the pragmatic issues such as governmental accountability and transparency, interactivity, policy making, security and privacy, quality and costs. Along with the positive accounts of eGovernment development, however, some concerns are emerging in the literature. This paper examines such issues with particular reference to national governments. Although Australia can be proud of its position as a leader in bringing government business to the Web, it must also be cognisant of the concerns about eGovernment that are being more widely identified.

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Deakin University and the University of Calgary have used the internet to provide workplace-based learners with the possibility of a student exchange programme which does not disrupt their careers, lives or families.  The programmes involved in this on-line exchange were both developed in response to the needs of workplace learners and are representative of the role of universities in the field of life-long learning.  This paper describes the first phase of the exchange and discusses the shared pedagogical philosophies and shared implementation of on-line groupware which provided a rationale for the exchange.  The paper will explore the cross-cultural implications of the educational experience and the possibilities such an exchange opens up for life-long learners.

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This paper describes teaching and learning in building design cost management for undergraduate construction economics, construction management and architecture students using the WorldWideWeb based Building Cost Information Service. The paper also discusses the benefits of using such an authentic learning strategy to achieve specified learning outcomes which are considered by t he a uthors to be of considerable benefit in the teaching of this important subject area. Although there are a number of limitations in the application of building design cost management, as considered in this paper, some of which are discussed below, to date no satisfactory alternative has been developed, and therefore, a clear understanding of what the process is and how it is applied, is essential.

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Survey response rates and response quality are declining in most markets, threatening the viability of many established research techniques. One attempt to combat this has been to make survey completion more convenient for respondents, with on-line surveys being an example of this. This paper looks at respondent attitudes to demographic questions in on-line surveys – questions that are crucial for many analysis practices and yet often have the highest non-completion rates. The exploratory survey conducted here (n=198) examined attitudes towards surveys and empirically examined the reasons behind non-completion and intentions to give misleading information. The results suggest that general attitudes towards providing demographic data in on-line surveys are related to the likely response behaviour, and the more uncomfortable someone claims to be with providing this data, the more likely they will be to either omit a response or exit the survey altogether. Past experience with on-line surveys increases the chances of respondents answering completely and accurately and in most cases, significantly reduces the likelihood of exiting the survey completely if asked these questions. Finally, there is some evidence that providing broad categorical response options is preferred to more specific categories or open text boxes, and this may represent the best technique for improving response rates and quality.

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An on-line site was created to support students studying a time shortened, off-campus unit in engineering management that was being offered over summer semester for the first time. An evaluation exercise was undertaken to assess the effectiveness of this arrangement, to identify what types of on-line resources students rated as important, and to identify those on-line resources that students actually used in their summer semester studies. Most students reported that they were successful in achieving their summer semester study goals, and that summer semester study was as good as or better than studying in a standard semester. The types of on-line resources ranked most highly by students were those that assisted in strategic study and exam preparation. The on-line resource ranked as least important and used least in practice was a discussion forum for all students. Other results and statistical analysis are presented.

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Electronic negotiation (e-negotiation) is a major activity in e-Commerce applications. Agent-based e-negotiation has recently received increasing attention. However, agent-based electronic negotiation suffers from a number of security attacks. In this paper, we present a mobile agent-based e-commerce framework. We also propose a security protocol that protects the information exchanged between the mobile agents during e- negotiations. We reason the correctness of the proposed security protocol in the presence of various security threats. The reasoning shows that the protocol maintains privacy, non- repudiation, authenticity, anonymity, and strong integrity of exchanged information.