首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 203 毫秒
1.
盛亚  尹宝兴 《科研管理》2011,32(10):97-103
企业资源计划(ERP)的员工使用意向是ERP实施成功的关键。本文基于技术使用模型(TAM),构建了ERP系统实施环境下的员工使用意向,以ERP培训、领导支持、技术人员配备和利益共识为四个外部变量进行了实证研究。结果表明,利益共识和技术任务匹配显著地影响员工对ERP系统的有用认知和易用认知,因此,提高员工对ERP的利益共识和任务技术匹配程度有利于ERP系统的有效实施。  相似文献   

2.
基于感知利益、成本和风险视角,对移动互联网用户采纳行为进行研究,构建用户采纳的结构方程模型,以揭示影响用户采纳移动互联网的关键因素及其作用机理。利用SPSS软件对模型量表进行探索性因子分析,使用SmartPLS软件对模型量表进行验证性因子分析和对结构方程模型的假设进行检验。结果显示用户对移动互联网的感知有用性、感知乐趣、无所不在性、感知成本对感知价值影响显著,感知价值、社会影响和感知有用性对用户采纳意向有直接影响,用户创新意识对感知价值与用户采纳意向的关系有显著负向调节作用。最后,对研究结果进行了讨论,提出促进我国移动互联网发展的建议。  相似文献   

3.
在信息系统持续使用模型(ECT-IT)的基础上,结合营销学的关系质量理论,在该模型中加入用户信任和转移成本两个因子,用电子服务质量代替期望确认变量,选取大学生网上银行持续使用行为作为研究对象进行实证研究。结果表明:用户感知的信息质量、系统质量和服务质量,对用户感知有用性和用户满意有着显著的正向影响;用户感知有用性、满意、信任和转移成本,都对用户持续使用意愿有着显著的正向影响,影响程度从大到小分别是满意、转移成本、信任和感知有用性。  相似文献   

4.
SNS采纳后阶段的持续使用行为是SNS成功的关键,本研究提出情感依恋在用户持续使用意向形成过程中起关键性作用,用户的持续使用意向将受到情感与认知的双重作用。在整合ECM-ISC模型以及情感依恋相关理论、依恋强度ARC模型、情感扩建相关理论的基础上,构建了概念模型,以微信朋友圈经验用户为调研对象,进行了实证研究。研究结果表明:改进后的模型具有更高的解释力,感知有用性、满意和情感依恋对持续使用意向有显著影响,并间接影响用户的持续使用行为。用户关联、能力以及自主需求的满足会促使用户产生情感依恋并在情感扩大机制的作用下促使用户产生持续使用意向,同时满意度对于情感依恋也具有显著的正向作用。  相似文献   

5.
师斌  李凯  严建援 《科研管理》2018,39(4):64-73
随着LBS在全球范围内的快速发展,LBS用户使用意向的影响因素及用户认知过程引发了相关领域学者的广泛重视。然而,以往研究缺乏对其中个人隐私问题的有效关注。本研究以公平理论和价值接受模型为理论基础,从个人隐私信息视角出发,探索LBS特性对用户使用意向的作用机制,构建LBS用户使用意向的认知过程模型,并利用264份有效问卷对研究模型进行实证检验。研究发现,首先,LBS平台的个性化和互动促进特征对用户的感知有用性和感知娱乐性都有正向提升作用;其次,互动促进会增加用户的隐私关注,而隐私政策会减少用户的隐私关注;最后,用户的感知有用性和感知娱乐性正向提升其感知价值,进而增加LBS使用意向,而用户的隐私关注会降低其感知价值,进而降低用户的使用意向。  相似文献   

6.
赵文军  任剑 《情报科学》2017,35(8):72-78
【目的/意义】从认知维度、社会维度以及情感维度三个层面分析移动阅读用户的心理特征,揭示移动阅读 服务持续使用意愿的发生机理。【方法/过程】借鉴刺激-机体-反应(S-O-R Model)模型,构建移动阅读服务持续 使用意向的因果模型,通过对371名大学生进行问卷调查获取研究数据,采取结构方程模型对概念模型中各变量之 间的关系进行实证检验。【结果/结论】感知有用性和满意度是移动用户持续使用意向的重要因素,信息交互质量、 系统交互质量对感知有用性和满意度具有显著正向影响;情感依恋不仅显著正向影响持续使用意向,还对感知有 用性和满意度具有积极影响;人际交互质量显著正向影响感知社交性,但感知社交性对有用性感知、满意度以及持 续使用意向的作用效应没有通过显著性检验。  相似文献   

7.
【目的/意义】探讨社会化问答社区用户持续使用意向的影响因素,期望促进社会化问答社区的可持续发 展。【方法/过程】基于期望-确认模型和使用与满足理论,构建了社会化问答社区用户持续使用意向的影响因素模 型。通过问卷搜集547 份有效样本数据,采用PLS结构方程模型进行数据分析。【结果/结论】结果表明,用户对社会 化问答社区的感知有用性和满意感是影响用户持续使用意向的主要因素;感知有用性正向影响满意感;确认正向 显著影响感知有用性和满意感。与此同时,娱乐需求和信息需求正向显著影响持续使用意向。此外,社交需求对 持续使用意向不产生正向作用;而娱乐需求、社交需求和信息需求与满意感之间不存在显著相关关系。  相似文献   

8.
作为一项为企业带来巨大价值的信息技术,RFID在我国企业中的采纳受哪些因素影响是一个重要的研究问题。本文以技术接受模型为基础,结合RFID的特征,建立了包含技术、组织和制度与外部环境三方面因素的企业RFID技术采纳模型。实证研究发现:我国目前企业RFID的应用水平还很低;有用性认知、易用性认知、强制性压力、相互信任和客户对隐私的关注都对企业采纳RFID的行为意向产生了显著影响;同时,易用性认知和高级管理层的支持还通过有用性认知对行为意向产生了间接影响;然而,高级管理层的支持、信息系统基础设施、正规化压力和模仿竞争力对企业采纳RFID的行为意向影响不显著。  相似文献   

9.
【目的/意义】以用户体验层次设计和过程模型为理论基础,结合期望确认模型、技术采纳模型等相关的研 究,提出用户体验行为模型和相应的研究假设。【方法/过程】以移动商务领域的用户为例,采用调查问卷共获得372 份有效样本,利用SPSS和Lisrel对问卷进行信、效度分析和模型的检验修正。【结果/结论】实证结果显示,在对持续 使用意向的影响中,用户体验的三层次中,认知层体验的影响最大,其次是反思层体验,最后是感官层体验;期望确 认程度对于用户的有用认知和易用认知都有不同程度的显著影响;期望确认程度和满意度对持续使用意向存在显 著的影响。  相似文献   

10.
【目的/意义】在移动互联网环境下,越来越多人使用手机搜索信息和服务,不少用户正在从电脑搜索向手 机搜索转移,探讨用户转移意向及影响成为当前研究的重要议题。【方法/过程】为探究用户从电脑搜索向手机搜 索转移的关键影响因素和作用机制,本文以双系统认知理论为基础,构建用户搜索行为转移意向理论模型和相关 假设。通过网络问卷和纸质问卷共回收 375份有效样本,利用偏最小二乘法进行数据分析。【结果/结论】结果表明: 感知移动性、感知场景性和低转移成本三个分析因素均对转移意向具有正向影响;直觉因素中的感知流行性对转 移意向具有显著的正向影响,而电脑搜索习惯具有显著的负向影响;转移情境具有正向影响。最后,针对手机搜索 服务提升和用户搜索行为优化提出有效措施。  相似文献   

11.
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.  相似文献   

12.
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China's science enterprise by making S&T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party's Leading-member Group at CAS, which was held from 7 to 11 January in Beijing.  相似文献   

13.
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.  相似文献   

14.
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants."  相似文献   

15.
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.  相似文献   

16.
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.  相似文献   

17.
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.  相似文献   

18.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.  相似文献   

19.
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment.  相似文献   

20.
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号