互联网用户协同创作与内容共享的活动系统研究   总被引：1，自引：0，他引：1  

张薇薇  王昊  朱晓东 《中国图书馆学报》2011,37(4)

基于内容开放共享的互联网用户协同创作活动采取异步异地的工作模式、共享控制的管理模式以及实时反馈的协作策略。采用活动理论的研究框架和分析方法构建了互联网用户协同创作与内容共享的活动系统模型,并逐步分析其活动要素、子系统以及活动结构。定义并描述了主体、客体、社群三个核心要素,工具、规则、角色三个媒介要素,以及生产、消费、协作和交流四个子系统,将活动过程分解为消费、生产、反馈与协作、冲突与协调四个阶段并深入分析了各阶段的结构特点。基于动态流程分析,描述了社群结构中用户的角色分化现象,并推演出被动用户、外围贡献者、核心贡献者、异常用户、社群参与者五种角色类型。图3。表2。参考文献29。  相似文献   

Customer acceptance of IPTV service quality   总被引：1，自引：0，他引：1  

Hyeong Yu Jang  Mi Jin NohAuthor vitae 《International Journal of Information Management》2011,31(6):582-592

The purpose of this article is to provide insights into the effects of Internet Protocol Television (IPTV) service quality and reveal mediation effects in the process of forming the repurchase intention. This study incorporates additional theoretical construct, perceived enjoyment, to reflect IPTV characteristics using extended technology acceptance model (TAM). This study empirically investigated a research model and conducted a survey of IPTV service users. The results of this study are as follows. First, IPTV service quality is summarized as design, security, and customer service, which is supported by second-order factor analysis. Service quality had an influence on perceived usefulness, perceived ease of use, and perceived enjoyment. Second, perceived ease of use had a significant effect on perceived enjoyment, and perceived usefulness also had an effect on repurchase intention. Third, attitude, trust, and satisfaction had a positive effect on repurchase intention. To reveal the impact on repurchase intention of the IPTV service quality, this study proposes customer acceptance on IPTV service based on a modified TAM.  相似文献   

Collaborative management of business metadata     

Kai M. Hüner^{Author Vitae}  Boris Otto Author VitaeHubert Österle Author Vitae 《International Journal of Information Management》2011,31(4):366-373

Legal provisions, cross-company data exchange and intra-company reporting or planning procedures require comprehensively, timely, unambiguously and understandably specified business objects (e.g. materials, customers, and suppliers). On the one hand, this business metadata has to cover miscellaneous regional peculiarities in order to enable business activities anywhere in the world. On the other hand, data structures need to be standardized throughout the entire company in order to be able to perform global spend analysis, for example. In addition, business objects should adapt to new market conditions or regulatory requirements as quickly and consistently as possible. Centrally organized corporate metadata managers (e.g. within a central IT department) are hardly able to meet all these demands. They should be supported by key users from several business divisions and regions, who contribute expert knowledge. However, despite the advantages regarding high metadata quality on a corporate level, a collaborative metadata management approach of this kind has to ensure low effort for knowledge contributors as in most cases these regional or divisional experts do not benefit from metadata quality themselves. Therefore, the paper at hand identifies requirements to be met by a business metadata repository, which is a tool that can effectively support collaborative management of business metadata. In addition, the paper presents the results of an evaluation of these requirements with business experts from various companies and of scenario tests with a wiki-based prototype at the company Bayer CropScience AG. The evaluation shows two things: First, collaboration is a success factor when it comes to establishing effective business metadata management and integrating metadata with enterprise systems, and second, semantic wikis are well suited to realizing business metadata repositories.  相似文献   

Enterprise Information Portals in support of business process, design teams and collaborative commerce performance     

Hsin Hsin Chang^{Author Vitae}  I. Chen WangAuthor Vitae 《International Journal of Information Management》2011,31(2):171-182

Enterprise Information Portals (EIPs) have been widely adopted as platforms for the integration of knowledge management and information technology (IT). This study has been conducted from the knowledge management perspective in order to examine the influence of EIPs on collaborative commerce in the automobile industry. This study explores the integration of internal and external business processes and the coordination of collaborative design teams. An initial qualitative investigation explores the practical applications of an EIP in an automobile company. A research model is then formulated and tested using a questionnaire survey of the R&D department of a motor company in Taiwan. The results of the data analysis reveal that presence of EIPs can help a company realize the benefits of c-commerce. EIPs also can improve collaborative commerce performance by promoting the degree of integration of the enterprise process and by strengthening the process innovation and communication of collaborative design teams. The results suggest that managers should reinforce important factors, including knowledge management tools, process integration, and the quality of design teams, in order to achieve success in collaborative commerce.  相似文献   

浅谈颠覆性技术     

蒋子规 《中国科技信息》2011,(23):47+54-47,54

主导性设计和颠覆性技术是技术、产品和服务业务的两种商业模式。本文主要通过颠覆性技术与维持性技术之间的比较介绍了什么是颠覆性技术,并讨论了在辨别颠覆性技术时可能遇到的问题。  相似文献   

教师桌面发布与共享实验教学软件的设计与实现     

姚玉姝  陈宏亮  李晓珊  张建春  狄国强 《科技广场》2011,(5)

程序设计、软件开发类的实验教学要求越来越高,教学环境一般在网络机房。而学生掌握着自用电脑的控制权,甚至可以随意上网,网络教学环境使学生的思想不容易集中于教学,导致效率不高,教学效果不好。教师桌面发布与共享使教师的电脑桌面在必要时取代学生电脑桌面,迫使学生集中于教学内容,减少了外界环境对学生的吸引。借助于网络控制,教师和学生还可以实现互动式的教学,方便教师演示操作,协助学生提升教学效果。  相似文献   

基于顾客满意度的改进设计决策模型     

刘琳 《科技广场》2011,(3)

由于科学技术发展越来越快,产品生命周期缩短,生产成本降低空间缩小,技术创新空间降低,各企业对顾客满意度的关注度越来越高,但是随着产品生命周期的缩短,产品更新换代速度的加快,企业对于产品改计的切入点寻找难度增加,改进成本也随之提高,本文从顾客满意度的角度,对卡诺(Kano)模型进行改进,引入优先指数,将待改进指标进行排序,使企业的改进方向更为明确,为改进决策起导向作用。  相似文献   

中药智能配药控制系统的硬件设计     

熊旺平  周娴 《科技广场》2011,(9)

为攻克现有配药控制系统的硬件设计的不足,设计了对应的取药机构、定位机构、机械机构、电机控制系统,实现了PLC对取药行走装置较高效、智能的控制。  相似文献   

一种引入内容特征的混合推荐方法     

陈勇 《科技广场》2011,(11):10-12

本文使用聚类算法将项目和用户进行分组,从而引入内容特征,再结合协同过滤方法,构造一种混合的推荐方法。实验结果表明,本文的推荐方法在较高稀疏度下优于一般的协同过滤算法。  相似文献   

基于VERICUT的数控车床宏程序仿真应用     

敖军平  罗永华 《科技广场》2011,(11):87-90

本文提出的数控车削加工教学实验仿真,对数控加工仿真的若干关键技术进行了研究,以此为基础建立了数控加工仿真系统并应用到教学中。学生利用此系统可以在计算机上模拟加工环境和在VERI-CUT平台上实现数控车削模拟仿真加工的过程,校验整个机床加工过程和加工程序的准确性,来帮助学生清除编程错误和优化切削参数,从而提高加工效率。  相似文献