基于SOA的企业应用系统集成研究与实现

文中分析了企业应用系统集成的必要性和点对点集成及EAI方法的不足.探讨了面向服务的架构模型及其集成思想.提出了基于SOA的企业应用系统集成的解决方案,并给出了一个具体应用集成的开发示例.充分论证了基于SOA的应用系统集成开发的优越性和必然性.Web服务技术是实现SOA的最佳实践.     

面向服务的企业应用集成架构研究

对传统的企业应用集成方法进行分析,提出一种基于SOA模型的企业应用集成框架,并讨论了相关的支撑技术;给出了Web Services集成实现模型—传输层、消息层、描述层、保证层和组合层。面向服务的实现企业应用集成框架的方式,能较好地解决企业原有应用系统集成的问题,从而克服了EAI传统解决方案中的缺点,建立了一套独立于语言并且跨平台的系统集成方案,并给出了一个面向服务的企业应用集成系统实例。     

基于SOA架构的企业应用集成平台研究

针对大中型企业信息化面临的挑战,提出了开发一套基于开放标准的企业应用集成平台产品可有效解决企业面临的应用系统集成难题。介绍了企业应用集成的定义、目标和企业应用集成类型,在此基础上提出了基于SOA架构的企业应用集成平台的体系架构,该体系架构具有松耦合、标准化支持度高和快速应用集成等特点。最后,通过企业应用集成案例,分析了采用基于SOA架构企业应用集成平台的集成应用及实施效益。     

基于ServiceMix的SOA架构的研究与实现

SOA(面向服务的体系结构)是目前企业应用集成领域主流的软件体系结构,ESB(企业服务总线)是一种遵循SOA框架的系统集成解决方案。本文探讨了SOA、ESB和JBI之间的关系,并提出了基于开源ESB-ServiceMix的SOA架构的简易实现方案。     

基于业务服务的企业遗留系统集成框架

企业应用集成(EAI)是当前企业进行业务扩展的一项主要技术,基于SOA实现EAI面临着一个重要的问题,如何将遗留系统无缝地连接到不断变化的新业务需求中.利用面向服务的架构来解决企业遗留系统应用集成.结合业务服务的概念和传统企业应用集成解决方案,讨论了基于业务服务的遗留系统应用集成框架,使用IBM平台对一个遗留销售系统集成案例进行了实现.     

基于SOA实现企业应用集成

文中分析了企业信息系统集成的必要性和传统EAI解决方案所面临的不足。探讨了面向服务的组件结构模型及其集成思想。提出了基于面向服务架构实现应用集成开发的解决方案，并给出了一个应用微软BizTalk（r） Server实现某石油部门信息系统应用集成的开发实例。充分论证了基于SOA实现系统集成开发的可行性及优越性：只须将应用系统看作一组服务功能集合，对服务编排融合，便能够更好地重用、共享，并能分布式部署。基于SOA的应用集成正是开发响应性好、可适应的新型应用程序所首选的解决方案。     

基于SOA的企业应用集成模型的研究

针对传统企业应用集成EAI的集成难度大、缺少灵活性和适应性、扩展性差、互操作性差等问题,利用SOA具有松耦合、跨平台、可重用等优点,提出一种基于SOA新模型S_EAI,分为用户交互层、总线层、服务组装层和基础设施层,实现了用户访问与底层数据、企业应用的分离,将业务流程改造封装成各类基于标准的松耦合企业服务.结合实际项目设计实现了基于S_EAI模型的企业应用集成框架,在该框架上直接进行项目开发,能够提高服务开发速度,为企业应用集成提供了一个新方案,在实际项目实施中得到了成功应用.     

基于SOA的企业应用集成技术架构实施方法

随着IT技术的发展,企业使用了大量的应用系统,其信息应用架构也变得更加多样和复杂。在企业业务发展提出更多需求的同时,对企业应用系统的深化应用、应用系统集成、数据标准统一和数据共享提出了更高的要求。本文介绍了企业应用集成技术的发展,面向服务的应用集成技术架构,并提出了基于SOA的企业应用集成项目的实施方法。     

基于SOA实现企业应用集成

文中分析了企业信息系统集成的必要性和传统EAI解决方案所面临的不足.探讨了面向服务的组件结构模型及其集成思想.提出了基于面向服务架构实现应用集成开发的解决方案,并给出了一个应用微软BizTalk(r)Server实现某石油部门信息系统应用集成的开发实例.充分论证了基于SOA实现系统集成开发的可行性及优越性:只须将应用系统看作一组服务功能集合,对服务编排融合,便能够更好地重用、共享,并能分布式部署.基于SOA的应用集成正是开发响应性好、可适应的新型应用程序所首选的解决方案.     

面向SOA的企业服务总线研究与实现

针对企业日益增长的信息共享和业务整合的需求,面向SOA的企业服务总线屏蔽各类异构的应用从而实现基于SOA架构的企业应用集成是大势所趋。现有的面向SOA的企业服务总线（s-ESB）大多立足于提供Web服务容器,并没有提供统一的适配机制无缝集成各类企业应用,从而极大限制s-ESB的高可用性和可扩展性。首先,提出了一种新型的基于SOA架构的企业应用集成环境,从而明确了s-ESB在构建企业应用集成中的地位和作用;其次,提出了s-ESB的体系结构模型,并解决了协议适配,服务适配和公共服务等关键技术问题;最后,原型系统证明s-ESB的灵活性,可有效集成各类异构企业应用。     

Only connect: teaching, technology and telesis

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.     

European Community policy and the market

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.     

一种自适应子融合集成多分类器方法

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。     

Avoiding semantic and temporal gaps in developing software intensive systems

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.     

Designing economic np control charts: A programmed simulation approach

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.     

The development of robot art

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     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.