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This study examines the relationships between various risks, beliefs, and behavioral intentions that are related to citizens' use of anti-/counter-terrorism e-Government websites. The data was collected through two surveys within a one-year interval — before and after the Iraqi regime was expelled by the US coalition army. The results suggest that perceived privacy risk from an anti/counter-terrorism authority is the major obstacle in citizen-to-government anti/counter-terrorism information flow, while citizens' belief in the authority's domain competence greatly influences citizens' dependence on anti/counter-terrorism website information. Other findings and implications are discussed, and directions for future research are suggested.  相似文献
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Fast-developing social networking sites (SNS) have become the major media by which people develop their personal network online in recent years. To explore factors affecting user’s joining SNS, this study applies network externalities and motivation theory to explain why people continue to join SNS. This study used an online questionnaire to conduct empirical research, and collected and analyzed data of 402 samples by structural equation modeling (SEM) approach. The findings show that enjoyment is the most influential factor in people’s continued use of SNS, followed by number of peers, and usefulness. The number of peers and perceived complementarity have stronger influence than the number of members on perceived benefits (usefulness and enjoyment). This work also ran clustering analysis by gender, which found notable difference in both number of peers and number of members between men and women. The number of peers is an important factor affecting the continued intention to use for women but not for men; the number of members has no significant effect on enjoyment for men. The findings suggest that gender difference also produces different influences. The implication of research and discussions provides reference for SNS operators in marketing and operation.  相似文献
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SMS, being an almost instantaneous communication medium that connects people, is now a phenomenon that has grown and spread around the globe at an amazing speed. Given the current trend of SMS usage and its potential growth, this paper will provide an insight of the extent to which how service quality and the value perceived by the SMS users have an impact on their extent of the SMS usage in the post SMS adoption phase. Specifically, this article will examine how service quality of the service providers and perceived value affect customer satisfaction and how customer satisfaction will affect their behavioural intention to continue to use SMS which in turn affects the extent of SMS usage in the local context. Using partial-least-squares, an analysis was conducted based on the 150 surveys collected to test for the proposed relationships. The results showed that the tangibles, empathy and assurance dimensions of service quality are antecedents of customer satisfaction and a positive relationship exists between customer satisfaction and customers' behavioural intentions to continue to use SMS. Additionally, the positive relationship between customers' behavioural intentions to continue to use SMS and the extent of SMS usage is also significant. These results were similar to the results shown by Cronin and Taylor (1992) studies. The perceived value/customer satisfaction relationship investigated in this research was in line with Fornell et al.(1996) and Cronin et al.(2000) where perceived value was one of the determinants of customer satisfaction. Specially, the results revealed that perceived value, together with tangibles, empathy and assurance aspects of the service quality, played an important role in determining customer satisfaction for SMS. Implications of the above results for research and practice are discussed.  相似文献
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Technology has become a fundamental component of both education and work. Yet regardless of perceived benefits, in many cases students do not use technology effectively. One challenge educators confront is how to motivate students to effectively use the technological mediums provided in their classes. The goal of the current study is twofold: to use the Technology Acceptance Model (TAM) to examine two motivators of behavior, ease of use and perceived need, and to assess how they affect students’ likelihood of effectively using technology. Second, we evaluate how the match between expectations of the use of technology and the actual student use affect actual classroom performance. To test our hypotheses, college students (N = 384) in introductory psychology classes completed a survey. We also obtained the instructor’s perceptions of the need for technology in their class and students’ final class grades. Results showed that ease of use and perceived need of technology were related to the frequency of computer use and intentions to use technology. Additionally, findings suggested that technology use, specifically technology deemed important by the instructor, was related to academic success (i.e., final grade in class).  相似文献
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李珍  华庆一  李倩  周杰 《计算机工程》2011,37(20):291-292
在普适环境下,计算环境的复杂性使普通用户不易通过预定义的操作来控制系统的状态,致使用户界面设计不能正确反映系统 的特征。为此,提出一种基于感知控制的场景设计方法。该方法利用感知控制理论对使用场景进行分析,导出用户意图控制的对象及策 略,并在此基础上重新设计使用场景,从用户任务的角度出发,使所得到的界面满足用户感知控制的需要。通过案例分析证明该方法的有效性。  相似文献
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This study assesses the pre-service teachers’ self-reported future intentions to use technology in Singapore and Malaysia. A survey was employed to validate items from past research. Using the Technology Acceptance Model (TAM) as a research framework, 495 pre-service teachers from Singapore and Malaysia responded to an 11-item questionnaires containing four constructs: intention to use (ITU), attitude towards computer use (ATCU), perceived usefulness (PU), and perceived ease of use (PEU). Structural equation modelling (SEM) was employed as the main method of analysis in this study. A multi-group analysis of invariance was performed on the two samples. The results show that configural and metric invariance were fully supported while scalar and factor variance invariance were partially supported, suggesting that the 11-item measure of the TAM may be robust across cultures and that the factor loading pattern and factor loadings appeared to be equivalent across the cultures examined. While all the paths in the structural model were significant, the variance accounted for in the dependent variable (ITU) was much larger in the Malaysian sample relative to the Singaporean sample.  相似文献
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With remarkable growth of ICT development and the Internet popularity, the widespread use of the electronic service is becoming inevitable. Furthermore, as the user adoption plays an important role for successful and effective implementation of any project, thus, there is a need to assess user acceptance of the e-service technology. This research developed the E-Service Technology Acceptance Model (ETAM) to assess the user acceptance of e-service technology. According to the literature review in the field of e-service technology and acceptance theories, this study identified the main factors influencing the acceptance of e-services, namely satisfaction, security and quality and then, dimensions of these factors were extracted from the previous studies. In order to categorise the dimensions, an exploratory survey was developed and conducted among the university students and then, the exploratory factor analysis was applied. Afterwards, a confirmatory survey was designed and conducted among the 427 Malaysians and tested in terms of validity (content and construct) and reliability and then used to evaluate the ETAM. Finally, the structural equation modelling was applied to validate the casual relations and to assess the goodness-of-fit. The results of this study revealed that quality, security and satisfaction significantly influenced the intention to use an e-service and consequently the acceptance of e-service technology. The ETAM can help evaluate and predict how users will respond to an e-service before starting the development of any e-service project. Additionally, ETAM can be used as a foundation for e-service providers to develop strategies to encourage people to use e-services and increase the usage and acceptance rate of e-services.  相似文献
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Web technology is changing rapidly every day and the internet has become a lifestyle for people all over the world. The power of the web has changed the way people communicate and do business. With the advance of the internet era, a successful website becomes a critical factor for the success of most businesses. Website design is not only about the look of the website. There are many other factors to consider. A well-designed site can induce users to engage in the website, help them find what they are looking for, and understand where exactly they are on the website. This study investigates the user’s perception disorientation, engagement, and intent to use a website in the future by manipulating these three basic factors into eight different experimental conditions. With 2 × 2 × 2 experimental design with content familiarity, site breadth, and media richness in website systems, this study suggests that both the main effects and the interaction effects of the experiment factors are significant. This implies that one or more factors can compensate for the weakness of other factors. Furthermore different people have preferences for different factors; therefore website design should not solely focus on a single factor, but should address all of these factors in accordance with the objective of the business.  相似文献
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孙浩  曾庆凯 《软件学报》2015,26(2):413-426
C/C++语言中整型的有限表示范围、不同符号或长度间的类型转换导致了整数漏洞的发生,包括整数上溢、整数下溢、符号错误和截断错误.攻击者常常间接利用整数漏洞实施诸如恶意代码执行、拒绝服务等攻击行为.综述了整数漏洞的研究进展,从缺陷发生后行为的角度提出了新的整数漏洞安全模型,总结了判定整数漏洞的充分条件.从漏洞判定规则对充分条件覆盖的角度对现有检测方法进行比较和分析.通过实例分析,讨论了整数漏洞在现实中的特征分布.最后指出了整数漏洞研究中存在的挑战和有待进一步研究的问题.  相似文献
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