共查询到20条相似文献,搜索用时 218 毫秒
1.
租赁服务器,即开放实验室,可以降低中小企业成本,阻以往的租赁服务器计费系统不能为用户提供实时处理的服务。为了适应市场变化,随着交换机技术的发展,各种通信协议标准的形成,一种联机实时采集计费系统已成为主流,能够为用户提供实时的处理服务。基于Java设计的租赁服务器计费系统数据采集与整合子系统,该子系统对数据处理的灵活方式能够满足用户短期租机、实时查询、实时处理、临时出账、及时决策的租赁服务器需求,很好地解决了以往计费系统的不足,友好的人机交互界面使操作更加简洁、直观,可以提高租赁服务器企业的市场竞争力。 相似文献
2.
《每周电脑报》2003,(37)
在市场竞争日渐白热,市场淘汰日趋残酷的全球经济环境中,拥有雄厚的资本、庞大的客户群、良好的知名度的大企业,无疑具有绝对的综合竞争优势:而对于中国市场90%的中小企业来说,只有依靠相对简单扁平的组织机构,灵活的市场策略,快捷的业务处理过程,才能在市场竞争中拼来生存空间。进入信息时代以后.信息化手段加快了信息传递和沟通:越来越多的企业管理者注重通过实施信息化系统来解决快速决策、规范管理,加快资金循环,减少库存等管理问题同时,由于大企业在行业中的重要性,许多 IT 供应商也把关注重点放在这些大型企业身上。国内许多大企业通过上马 ERP 项目,简化了流程、加快了反应速度、并提高了经营效率。可以说,通过信息化技术的应用,原本只属于中小企业的快速,灵活的特点也将被大型企业所拥有。于是,众多的中小企业也开始寻求适合的信息化商务解决方案并期望从中受益,以保持和突显自身原有的独特优势 相似文献
3.
一种统一授权和访问控制模型的设计实现 总被引:1,自引:0,他引:1
企业信息平台(EIP)是一个基于企业模型的平台,目标是为了实现模型驱动的企业设计、分析和评价。EIP的目标之一就是建立一个可以容易地实现不同系统集成的架构,如:政府和其他企业中过程、结构、任务、目标和信息等的集成。论文的重点不是EIP中数据的集成,也不是应用的集成,而是授权的集成,主要针对的是EIP中工作流管理和资源管理中的授权集成问题。在现有的EIP系统中,工作流管理和资源管理一般都有各自独立的授权和访问控制模块,这种非一体化的授权方法容易引发多种安全问题。而先前的研究大都集中在单独的授权系统上,对它们的集成很少有讨论。论文提出了一种统一的授权和访问控制模型,可以以一种统一的策略来表示处理EIP系统中的各种授权和访问控制,解决了分散授权模型带来的一些安全问题,较好地实现了授权的集成。 相似文献
4.
电子商务是网络时代企业发展的必然选择。如何及时、有效地开展电子商务,这一问题不仅是大型企业机构最为关注的焦点问题,同样也是中小企业迫切需要解决的问题。与大型企业机构相比,中小企业的IT基础设施相对较弱,专业IT人员相对缺乏,资金也相对紧张,因此,中小企业开展电子商务有其自身的特点。利用触及全球的Internet,再购买或开发适合自身应用特点的应用系统,也可以迅速启动电子商务。下面介绍的方案是利用Lotus Domino/Notes开发平台,在Internet上进行信息交流,具有全国甚至全球范围的购销 相似文献
5.
Sybase 公司日前首次提出 EIP(EnterpriseInformation Portal,企业信息门户)应用战略。据 Sybase 中国公司总经理江永清的解释,EIP 是一个应用系统,它将使企业释放存储在内部和外部的各种信息,让客户从单一的渠道访问其所需的个人化信息。EIP 应用系统的优势在于它从更高的层次上对企业的信息系统建设提供了指导思想。基于 EIP 的应用系统的特点体现在单一的访问方式、集成性和个性化。 相似文献
6.
7.
8.
9.
《单片机与嵌入式系统应用》2003,(1):37-37
整个城市一卡通系统涵盖了金融、行政事业、交通等诸多行业;整体结构非常庞大。 一卡通从发卡、消费到充值等过程需要使用到各式各样的操作终端,如IC卡发卡终端、POS终端机、系统查询终端等等。为了使终端产品更加稳定、易用和具有创新性,使应用更加灵活广泛,智能卡终端大多开始采用以EIP技术作为核心操作平台的解决方案,利用EIP强大的运算和通讯功能,以及EIP高可靠的特性,来满足各种应用场合的需求。 相似文献
10.
尽管 EIP(企业信息门户)对企业用户的吸引力从未降低过,但是就 EIP 本身来说却经历了很大的变化。eWEEK Lab 早在两年前就对一些公司提供的 EIP 软件进行了评测,到今天其中很多软件已经全面采用了XML 和 Java 技术。此次横向评测的4款软件均采用了Java 技术,并在数据结构方面应用 XML 标准。这不是一种巧合,而是因为这些产品部需要更好地体现 WebServices(Web 服务),所必须选择的发展方向。在这次评估中,eWEEK Labs 评测了主流的 EIP 产品,包括:BEA Systems 公司 WebLogic Portal 8.1产品, 相似文献
11.
基于多Agent的中小企业信息门户研究 总被引:5,自引:0,他引:5
随着Internet/Intranet技术的迅速发展,企业急需通过统一的Web界面,提供企业信息、业务的统一入口,企业信息门户成为企业信息化建设的大趋势。该文采用Agent技术,研究中小企业EIP技术与实现方法,为具有高技术、经济、适用的国产EIP产品化提供支持。 相似文献
12.
中小企业电子商务平台建设研究 总被引:1,自引:0,他引:1
本文对中小企业电子商务系统进行详细的、系统的分析,集成SOA技术、流程引擎技术、CA安全技术研发中小企业电子商务平台,并通过SaaS模式为本地区中小企业提供B2B和B2C电子商务服务,采用RatlOnal统一过程(RUP)为软件开发方法,以统一建模语言(UML)为分析设计描述语言,以JZEE为技术平台,完成了系统的架构设计和详细设计,并最终设计出了一个跨区域、跨平台的,包含信息展示、后台管理、商务中心三个子系统的面向中小企业的电子商务系统. 相似文献
13.
14.
基于混沌遗传算法的柔性机械手滑模控制器优化设计 总被引:2,自引:1,他引:1
针对柔性机械手动力学方程的非最小相位特点,本文提出一种柔性机械手的终端滑模控制方法,将关节电机转角和柔性模态变量的线性组合定义为柔性机械手系统的输出.通过输入输出线性化,将系统分解为输入输出子系统和零动态子系统.设计终端滑模控制策略,使输入输出子系统在有限时间收敛到零;利用混沌遗传算法优化控制器的设计参数,使零动态了系统在甲衡点附近渐近稳定,从而保证整个系统的渐近稳定.本文提出的方法设计过程简单,易于实现.仿真结果证明了设计的有效性. 相似文献
15.
16.
Flexible robotic manipulators have been the subject of numerous studies in the past few years. Past studies, however, have concentrated on flexible manipulators with only revolute joints. This paper considers the case of a structurally flexible manipulator with prismatic and revolute joints; specifically, an algorithm for controlling a structurally flexible three-degree-of-freedom cylindrical manipulator is presented. The control algorithm involves two steps. Using nonlinear feedback, the equations of motion are first decoupled into three subsystems representing the three rigid degrees of freedom together with their associated ‘flexible equations’, if any. Then, using linear optimal control theory, controllers are designed for the three subsystems independently. Computer simulated results for an example system are presented. 相似文献
17.
18.
Flexibility can be defined as the ability to respond efficiently to the changing demands of the customer and is different in SMEs (Small-to-Medium manufacturing Enterprises) than the traditional OEMs (Original Equipment Manufacturers). Costs involved in implementing manufacturing flexibility to meet customer demand are more important in the SMEs, especially that are labor intensive for example metalcasting companies, when located in a high cost country like Norway. Therefore the Norwegian Research Council initiated the Autocast project to promote SME business cooperation and flexibility by automating the manufacturing processes within the Norwegian casting/foundry SMEs. The project intends to identify and improve the areas crucial for flexible manufacturing to help SMEs stay competitive in global competition. Literature confirms the difficulty in the development of objective measures for flexibility, for example, because of its property of multidimensionality. Nevertheless, an attempt has been made in this paper to identify the suitability of essential spheres of manufacturing flexibility to a foundry set-up accompanied by two living lab foundry case studies. The paper also completes the set of design rules specifically for foundry automation and assist flexibility in manufacturing. Efforts have been made to sustain the existing flexible automation implementation on the basis of poka-yoke principles. The findings from the living lab case study assist in proposing the design for flexible foundry automation (DFFFA) guidelines for flexible automation in a consortium collaborative environment could allow for better response to customer needs and support on-the-move interaction collaboration. 相似文献
19.
The virtual enterprise paradigm is the key for small and medium enterprises (SMEs) to enter into the business-to-business electronic commerce. Nevertheless SMEs require a reliable infrastructure connecting transparently to the global network of enterprises their IT application tools implementing the internal business processes. Such infrastructure is deeply grounded on a communication infrastructure that might offer operative and management mechanisms able to cope with the complexity of the underlying heterogeneous computational and communication available resources. Beyond information communication security (privacy, integrity, and authentication), an operating reliable infrastructure to manage information communication is required. The SME business cannot support the great vulnerability to failures presented by a distributed system made of heterogeneous technologies. The PRODNET Communication Infrastructure aims to offer beyond a secure and high availability communication infrastructure, a set of features to cope with such distribution and heterogeneity implemented by a flexible communication management module. Considering that SMEs do not have their own IT support, the PRODNET Communication Infrastructure also offers remote management/maintenance capabilities. 相似文献
20.
Yohji Kobayashi Masao Ikeda Yasumasa Fujisaki 《Automatic Control, IEEE Transactions on》2007,52(2):318-322
This note considers position and attitude control of large space structures composed of a number of subsystems (substructures) interconnected by flexible links. A decentralized control law of dynamic displacement feedback compatible with subsystems is applied under the assumption that sensors and actuators are collocated. It has been known that the overall closed-loop system is robustly stable against uncertainties in mass, damping, and stiffness, if rigid modes of each subsystem are controllable and observable. The objective of this note is to derive conditions for the overall system to be stable even when some local controllers fail. The conditions are expressed in terms of the stiffness (or damping) matrices and interconnection location matrices of the subsystems whose local controllers fail 相似文献