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支持企业经营过程重组的工作流仿真技术研究 总被引:17,自引:0,他引:17
企业经营过程的建模、分析和基于模型的企业
经营过程重组实施是确保企业成功实现经营过程优化重组的三个重要阶段.工作流管理是一
种能够有效的支持这三个阶段的信息技术.至今为止,工作流模型的仿真还是一个比较薄弱
的环节.本文提出了一种基于虚拟运行环境的工作流仿真方法,通过建立工作流虚拟运行环
境,以仿真引擎模拟活动的执行,自动处理过程中的半自动化活动或人工活动,并采用规则
与随机变量相结合的方法处理仿真过程中遇到的不确定因素,从而完成工作流仿真.为了增
强仿真的可信度和可视性,本文将虚拟现实技术引入仿真过程的动画显示.本文介绍了工作
流虚拟运行环境的构成,环境中核心组件(仿真引擎)的工作方式,并讨论了基于代理的虚
拟环境实现. 相似文献
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基于WF-net网的工作流仿真技术研究 总被引:1,自引:0,他引:1
工作流仿真是解决工作流系统可靠性与安全性的有效技术。与工作流建模相比,工作流仿真还是一个薄弱环节。在研究工作流仿真技术的基础上,提出了一种基于WF-net网,通过建立工作流虚拟运行环境来执行仿真的方法,并构建了一个工作流仿真平台JXWf_Simulation,最后给出了JXWf_Simulation具体实例分析。 相似文献
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基于WF-net的工作流模式建模与仿真 总被引:1,自引:1,他引:0
针对当前工作流模型仿真方法的不足,提出了一种基于WF-net网的扩展WF-net的工作流模式模型,并对模型进行验证与仿真.首先讲述工作流网(WF-net),然后从时间和层次两方面对基于WF-net的工作流模型进行扩展研究,提出了扩展WF-net工作流模型,并对该模型进行仿真调度策略和冲突解决策略进行选择,给出了某产品开发过程的扩展WF-net工作流模型,设计了扩展WF-net工作流模型仿真流程.为了增强模型仿真的可信度和可视性,从Petri网到扩展WF-net工作流网算法和仿真流程,经过仿真可知该模型没有死变迁,是正确的工作流模式模型. 相似文献
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基于工作流的思想,可以在仿真系统中将各信息系统看作相对独立的代理(Agent),在过程模型和组织模型中分别由工作流引擎与授权机构来控制用户和整个系统共同完成采购。同时,设计了组织模型和过程定义的说明语言,并考虑了异常情况的处理,保证了采购流程的顺利进行。 相似文献
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ERP工作流引擎中的数字签名技术* 总被引:1,自引:0,他引:1
论述了工作流引擎在企业资源规划(ERP)系统中的主要功能后,为了能解决工作流运行过程中可能遇到的网络安全、法律效力等问题,提出了结合数字证书与数字签名技术的B/S解决方案,并结合Java授权与认证服务(Java Authentication and Authorization Service,JAAS)保证了工作流引擎更加安全可靠地运行. 相似文献
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装备虚拟仿真训练应用研究 总被引:1,自引:0,他引:1
在培训过程中,为了减轻受训人员心理“畏惧感”,研制了对应的模拟训练器和虚拟仿真训练软件.受训人员通过虚拟仿真训练软件、模拟训练器逐步到实装的阶梯式培训,能够很快适应实装岗位需求,快速达到培训目的.论文基于虚拟仿真思想,在计算机虚拟仿真环境下建立了装备虚拟仿真模型,对仿真训练软件进行应用研究.同时给出了一种虚拟仿真开发的方法和步骤,可以在不同武器系统平台间移植应用. 相似文献
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S. Shaw 《Journal of Computer Assisted Learning》1993,9(2):93-99
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained. 相似文献
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European Community policy and the market 总被引:1,自引:0,他引:1
C. Lloyd 《Journal of Computer Assisted Learning》1993,9(2):86-91
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven. 相似文献
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融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。 相似文献
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Wayne O’Brien Author Vitae 《Journal of Systems and Software》2008,81(11):1997-2013
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them. 相似文献
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This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives. 相似文献
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潘丽 《自动化与仪器仪表》2014,(7):80-82
自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。 相似文献
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Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what
is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic
sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and
its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of
an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify
robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can
or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest.
This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January
31–February 2, 2008 相似文献
19.
张涛 《计算机测量与控制》2015,23(1):86-89
为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值. 相似文献
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Jacob Palme 《Software》1979,9(9):741-747
The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users. 相似文献