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平缝机刺料机构协同设计是现代制造业发展的必然要求,是实现敏捷化产品开发的基础。本文分析了异地协同设计系统的特征和实现网络协同产品设计的环境要求,建立了协同产品开发系统的体系结构,给出了基于网络的协同产品设计系统的工作模型。 相似文献
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异地协同产品开发具有分布性、异构性、互操作性、网络化运作的特征。建立一个有效的支持系统是进行异地产品开发的关键所在。针对此,提出了一种以因特网为平台的基于智能代理的多层级分布式协同系统体系结构,并对体系结构中各层组的运作机制及层级间相互关系进行了探讨,最后对采用该种体系结构开发出来的异地协同产品开发系统在实际中的应用情况进行了讨论。 相似文献
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为解决企业生产任务分配过程中面临多种信息交互,致使生产任务分配不合理问题,提出一种基于大数据的多供应商协同生产任务分配方法。利用大数据在信息收集、转换、分析与可视化方面的优势,结合生产任务分配特点,构建了基于大数据的任务分配框架;给出了子任务集的定义,并在此基础上提出了基于胜任度的任务分配模型,实现了任务分配合理化目标。通过模型检验,验证所提方法的正确性和有效性。 相似文献
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本文深入研究了协同产品开发平台的特点及其组成,在分析了此环境下项目管理特点的基础上,提出了一种基于协同产品开发平台的分布式项目管理系统体系结构,并详细讨论了系统的主要模块及基本功能。 相似文献
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《黑龙江科技信息》2020,(19)
CMMI和敏捷是软件开发项目最广为人知的两种开发模型。但是这两种开发模型存在着明显的差异,甚至在相当长的一段时间内,被人认为是项目开发方式的两个不同方向:一个代表了严流程、重文档的瀑布式开发模型;一个代表了短周期、轻文档的迭代式开发模型。笔者在多年的工作实践中,对于CMMI和敏捷都有所应用,本文通过对CMMI和敏捷两种概念的介绍,通过对它们差异性和共性的论述,明确了"CMMI告诉我们做什么,敏捷告诉我们怎么做"的观点,并提出了在敏捷中融合CMMI思想,用以提高敏捷性能的思路,希望能够给相关行业的从事人员一定的启发,提高工作效率,提升交付产品质量。 相似文献
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针对设计项目分布式数据进行集成协同设计时,通过二维图纸描述项目局部数据信息,数据集成过程中容易出现碰撞冲突,导致平台任务执行时间较长。因此,提出应用BIM(建筑信息模型)技术的设计项目分布式数据集成协同设计平台。利用各部分设计图纸和设计数据,构建设计项目BIM模型,并通过轻量化处理加强BIM模型的细节融合,再依托于BIM技术,搭建分布式数据协同集成架构,通过BIM协同管理模块使得用户的访问方式变得透明,避免分布式数据集成过程中产生碰撞冲突情况;结合聚类算法完成设计项目分布式数据协同集成设计。平台测试结果表明：当执行任务数量达到160个时,平台的分布式数据集成协同设计任务执行时间仅为24.97 s,很好地满足了实时性要求。 相似文献
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集成产品开发过程及其概念模型 总被引：12，自引：3，他引：9
改进新产品开发过程的目的在于：缩短产品开发时间,降低产品开发成本,改善各职能部门间的协调,提高组织的学习能力,并保证产品开发过程能全面反映顾客的要求。本文以对新产品开发过程进行再造（ｒｅｅｎｇｉｎｅｅｒｉｎｇ）为出发点,采用系统化的方法对新产品开发过程进行分析,建立了集成产品开发过程（ＩＰＤＰ,ｉｎｔｅｇｒａｔｅｄｐｒｏｄｕｃｔｄｅｖｅｌｏｐｍｅｎｔｐｒｏｃｅｓ）及其概念模型。全文首先在现有实证分析的基础上,说明新产品开发过程对新产品开发项目的成功具有深远的影响。其次,对现有的产品开发过程模型,如结构化过程模型（包括部门阶段模型、活动阶段模型、决策阶段模型）、权变模型和信息模型进行比较分析。第三,具体分析集成产品开发过程。第四,建立集成产品开发过程的概念模型。最后,论述了如何在集成产品开发过程中实现技术与市场的集成。 相似文献
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敏捷企业协同机理研究 总被引：2，自引：0，他引：2
本文在分析敏捷企业协同特点的基础上，系统地分析了敏捷企业的协同动因、协同方式及其实现形式、协同的潜在冲突或成本，构建了敏捷企业4区6因素7基础协同模型，揭示了敏捷企业的协同运行机理。 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
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
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US 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 the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
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
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
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
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《中国科学院院刊(英文版)》2008,22(1):2-3
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
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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
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《中国科学院院刊(英文版)》2008,22(1)
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
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Puay Tang 《The Information Society》1998,14(1):19-31
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
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Milton Mueller 《The Information Society》2001,17(3):151-163
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP. 相似文献
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Prof. Raymond C.K. Chen a neuropsychologist with the CAS Institute of Psychology has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology. 相似文献
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Leah A. Lievrouw 《The Information Society》1998,14(2):83-96
The main premise of this article is that in information societies generally, and in virtual social contexts particularly, a distinctive style of interaction to facilitate the communication of difference, heterotopic communication , has emerged. It rests on two cultural foundations: an ideological belief in the positive, socially integrating power of communication, and a prevailing ethic of instrumental rationality, subjective individualism, and strategically practiced self-interest. The former is demonstrated by the use of simulation and spectacle as sources of information; exhibitionism/voyeurism as a communicative style; and the awareness of surveillance. The latter is seen in the competitive use of knowledge as a commodity; a surface globalism masking deep parochialism; lateral as well as vertical information inequity; and the use of public versus private as strategies for engagement rather than as spaces. Those who engage in heterotopic communication resort to their 'own devices' both in the sense of personal agendas, strategies, interests, and interpretations, and in the form of the telecommunication tools that help realize them. These personal and technological devices allow individuals with the right educational and technical resources to avoid exposure to disagreement, difference, or other information that does not serve their direct purposes or reflect their particular views of the world; yet they also help convey the appearance of openness, availability, and cooperation. This style of interaction is used strategically in combination with information and communication technologies to gain social or economic advantages, but it may encourage social separatism and parochialism, inhibit the negotiation of disputes, and emphasize competing interests. 相似文献