共查询到20条相似文献，搜索用时 183 毫秒
1.
2.
大多数工作流系统应用范围窄,只能和某些特定类型的应用系统集成,工作流的支撑系统自身无法扩展。针对目前的工作流管理系统的缺陷以及未来的发展趋势,提出了一个工作流系统的框架。该框架结合了面向对象的思想以及对软件可重用性、系统可扩展性的要求,构造了一个完全面向构件的工作流系统的框架。该框架以工作流引擎为核心,允许开发人员通过定制工作流系统构件、扩展工作流系统新特性,满足不同类型企业的需要。 相似文献
3.
物流企业内部及企业之间应用系统的集成问题已成为当前物流行业信息化的关键。本文分析了Web服务技术应用集成问题,利用工作流技术提出一种解决方案,该方案中应用以Web服务形式提供给工作流系统集成,同时给出基于此方案具体的体系结构以及工作流管理系统中的流程执行步骤。 相似文献
4.
针对目前大多数工作流系统对异构企业应用支持不足的情况,通过引入Web服务和SOA两项技术,提出了能有效支持异构企业应用的基于Web服务的工作流引擎模型,详细描述了流程设计的方式。并通过利用Appian Enterprise对实际应用工作流引擎的设计与分析,实现了应用的集成。证明了基于Web工作流引擎解决企业异构应用的优势。 相似文献
5.
通过研究探索了应用工作流技术提供的可视、交互功能,将工作流技术应用于油田电力营销系统,解决了其应用工作流技术的关键技术．从而使各职能部门紧密结合在一起,消除企业内部信息孤岛,实现全网资源的集中管理、统一调度,对数据进行统计分析,为辅助领导进行决策,从而提高企业的经济效益和社会效益。 相似文献
6.
信息技术应用中的业务流程再造问题一直是组织信息建设的关键问题。工作流管理思想应用于企业的业务流程再造，用工作流管理系统设计工作流，并快速生成业务流程，可以有效地支持企业信息系统的建设，减少业务流再造的风险，提高再造的成功率。但是，作为信息技术的工作流管理系统对业务流程再造的支持过程中存在许多问题。这是制约工作流管理应用的瓶颈，解决这些问题，对于企业信息系统的建设具有实际意义。 相似文献
7.
介绍了工作流技术以及其在ER P中的应用,工作流技术是提高企业管理软件的重要技术,可以清晰、准确地描述企业实际运行的业务过程,通过工作流来管理企业业务流程,使得管理软件中流程与功能相分离,克服了传统的设计方法的不足。 相似文献
8.
9.
工作流技术逐渐成为一些专家和学者的研究热点,工作流技术作为-种过程建模和过程管理的核心技术,在信息系统中得到了迅速的发展.笔者根据实际的项目经验,以一个企业信息系统即产品生命周期管理系统为例,探讨了信息系统中工作流技术的研究和应用. 相似文献
10.
工作流管理系统为制造企业的产品制造流程系统应用提供理论基础和技术支撑。本文提出了面向制造企业的产品制造流程模型和基于工作流技术的产品制造流程系统体系,通过该系统体系可以实现产品制造流程的自动化执行。 相似文献
11.
A research 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 in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
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.
《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
13.
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
14.
《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
15.
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
16.
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
17.
Active biological molecules 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 therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
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
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.
Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
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.
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