Applications integration in a hybrid cloud computing environment: modelling and platform

With the development of application services providers and cloud computing, more and more small- and medium-sized business enterprises use software services and even infrastructure services provided by professional information service companies to replace all or part of their information systems (ISs). These information service companies provide applications, such as data storage, computing processes, document sharing and even management information system services as public resources to support the business process management of their customers. However, no cloud computing service vendor can satisfy the full functional IS requirements of an enterprise. As a result, enterprises often have to simultaneously use systems distributed in different clouds and their intra enterprise ISs. Thus, this article presents a framework to integrate applications deployed in public clouds and intra ISs. A run-time platform is developed and a cross-computing environment process modelling technique is also developed to improve the feasibility of ISs under hybrid cloud computing environments.     

中小企业云计算策略分析

云计算是一种全新的IT服务交付模式,是引领未来信息产业创新的关键战略性技术和手段,它能有效解决中小企业资源的动态需求和最终成本等问题,它为中小企业降低成本、完善管理、推进信息化发展、实现资源集成,它是形成和提升中小企业竞争力的关键因素。文章分析了现代商业社会中的中小企业竞争环境,以及中小企业实践云计算的价值,从IaaS、PaaS、SaaS三个方面阐述了中小企业实践云计算的策略,说明了中小企业IT向云演进的步骤,以及中小企业实践云的模式,并给出中小企业云的基础构架。文章还提出了中小企业云计算安全策略。     

基于云计算的虚拟桌面的架构方案探析

虚拟桌面是典型的云计算应用,它能够在云中为用户提供远程的计算机桌面服务。服务提供者在数据中心服务器上运行用户所需的操作系统和应用软件,然后采用桌面显示协议将操作系统桌面视图以图像的方式传送到用户端设备上。同时,服务器将对用户端的输入进行处理,并随时更新桌面视图的内容。通过分析某企业虚拟桌面的需求,探讨基于云计算概念设计虚拟桌面的架构方案。     

Scheduling multimedia services in cloud computing environment

Currently, security is a critical factor for multimedia services running in the cloud computing environment. As an effective mechanism, trust can improve security level and mitigate attacks within cloud computing environments. Unfortunately, existing scheduling strategy for multimedia service in the cloud computing environment do not integrate trust mechanism when making scheduling decisions. In this paper, we propose a scheduling scheme for multimedia services in multi clouds. At first, a novel scheduling architecture is presented. Then, We build a trust model including both subjective trust and objective trust to evaluate the trust degree of multimedia service providers. By employing Bayesian theory, the subjective trust degree between multimedia service providers and users is obtained. According to the attributes of QoS, the objective trust degree of multimedia service providers is calculated. Finally, a scheduling algorithm integrating trust of entities is proposed by considering the deadline, cost and trust requirements of multimedia services. The scheduling algorithm heuristically hunts for reasonable resource allocations and satisfies the requirement of trust and meets deadlines for the multimedia services. Detailed simulated experiments demonstrate the effectiveness and feasibility of the proposed trust scheduling scheme.     

A service governance mechanism based on process mining for cloud-based applications

ABSTRACT

With the widely use of cloud computing in enterprise information systems, service governance becomes critical for an enterprise to adapt to a changing business environment. In order to provide a dynamic strategy for continuous service governance, in this paper a comprehensive service analysis solution is proposed to address both design time and run-time requirements for cloud applications. First, a process-centric Semantic Scene Model is composed to combines static business requirements with dynamic execution information. Then service analysis is conducted referring both to the business process mining results from event logs and the Semantic Scene Model given by business model designers. Service governance strategies are generated from the service analysis results and are performed to qualitatively classify the Quality of Service (QoS) of the services. Finally the approach is verified with a transportation logistics service application in a cloud platform. The result shows that our method can get continuous service governance through combining business processes with run-time service analysis.     

The impact of using kiosk on enterprise systems in service industry

The hospitality industry services many types of travellers. Each of them needs to be analysed differently in order to accurately determine their respective service quality attributes and customer delight. The effective and efficient enterprise information systems (EISs) play a significant role in traveller’s experience and in the competitive advantages that hotels can gain. For this study, self-service kiosks and guest service agents as part of hotel’s EISs are used to investigate the impact each has on the experience of business and leisure travellers. This study provides empirical results that further investigate how to improve the service quality for both types of travellers during the registration process. This process is the first physical interaction between the travellers and the hotel. Any problem in registering would generate a long-lasting negative first impression on the travellers, thus diminishing the customer delight. In the light of our findings, this study will contribute to the effective and efficient design of self-service kiosk systems, hotel’s EISs, and improved front office management to better accommodate the specific needs of both types of travellers.     

云计算对信息技术外包的影响分析

随着IT技术和管理思想的不断成熟和发展,传统的信息技术外包已经在IT服务市场占据有利的位置。发展到今天,IT服务市场正在经历着前所未有的变化。由于云计算时代的到来,使得企业可以通过云服务的模式和平台,让多个用户同时广泛地运用一个或者多个平台,从而得到相关的IT服务支持。文章从云计算和信息技术外包的相关分析入手,重点分析云计算对信息技术外包的影响。     

浅析福建省交通物流云计算平台

文中在明晰云计算概念的基础上,针对福建省交通物流云计算平台的建设展开研究,分析平台建设对于政企双方的优势,并对福建省物流云计算发展趋势展开描述,对于福建省发展云计算公共服务,促进信息社会化建设有积极作用。     

Clustering-based urbanisation to improve enterprise information systems agility

Enterprises are daily facing pressures to demonstrate their ability to adapt quickly to the unpredictable changes of their dynamic in terms of technology, social, legislative, competitiveness and globalisation. Thus, to ensure its place in this hard context, enterprise must always be agile and must ensure its sustainability by a continuous improvement of its information system (IS). Therefore, the agility of enterprise information systems (EISs) can be considered today as a primary objective of any enterprise. One way of achieving this objective is by the urbanisation of the EIS in the context of continuous improvement to make it a real asset servicing enterprise strategy. This paper investigates the benefits of EISs urbanisation based on clustering techniques as a driver for agility production and/or improvement to help managers and IT management departments to improve continuously the performance of the enterprise and make appropriate decisions in the scope of the enterprise objectives and strategy. This approach is applied to the urbanisation of a tour operator EIS.     

一种基于Java及数据挖掘技术的学生管理系统

基于J2EE分布式体系结构的设计模式,针对大量的并发访问、复杂环境、网络不稳定等问题,提出了实现基于Java及数据挖掘技术的学生管理系统的解决方案。系统以Spring框架为核心,向下整合Hibernate框架进行持久层访问,向上整合Struts2框架按清晰的MVC(Model、View、Controller)模式控制,各层次之间以松耦合方式组织在一起,可清晰划分应用的层次,提高系统的灵活性,可扩展、可维护及可复用性。     

浅议推动新一轮企业信息化建设的关键技术——云计算

中小企业应用云计算模式进行信息化建设的基本框架可以在信息化建设流程的基础上进行改进,主要包括以下几个模块:信息化的需求分析;云计算信息化的选择策略;云计算模式的分析;云计算的实施和运行操作。这几个模块的规划和设计都应该是基于诺兰阶段模型分阶段进行的,不能逾越。     

企业级信息系统的访问控制研究与应用

针对企业级信息系统用户、角色多,权限关系和客体资源复杂等特点,在分析了多种访问控制技术的基础上,提出了一种新的基于角色的访问控制模型及其安全策略。此模型对传统的RBAC模型进行了优化处理,将分级授权、最小化授权、角色授权继承等策略相结合,以支持多种细粒度的访问控制。实验证明,能提高企业级信息系统的安全性和运行效率。     

基于SaaS的第三方物流企业信息平台架构及其应用

为了解决中小型第三方物流企业在信息化建设中遇到的问题,并使其在竞争中获得优势,本文首先提出基于一个云计算的第三方物流应用模式,在此基础上,提出基于SaaS的第三方物流企业信息平台架构,然后对SaaS模式物流信息系统的总体结构进行设计,并分析SaaS模式为中小型第三方物流企业带来的优势。     

基于云计算的网络监控系统应用前景分析

云计算是将海量的计算任务分布在大量计算机构成的资源池上,使各种应用系统能够根据需要获取计算力、存储空间和各种软件服务。该文从云计算的架构出发,寻求一种基于云计算模式下的网络监控系统应用前景分析。     

云服务模式下的物流配送系统运作框架与运行关键问题研究

构建包含物流企业层、云配送平台层、企业间合作层、功能网络层四个部分的组织架构和构建包含IaaS、PaaS、SaaS和终端接入层的技术架构。在分析云物流配送系统运作机理的基础上,发现需求预测、库存管理、选址与配送优化是云服务模式下物流配送系统运行的关键问题,并提出解决问题的基本思路。     

Secure smart grid communications and information integration based on digital watermarking in wireless sensor networks

As more and more wireless sensor nodes and networks are employed to acquire and transmit the state information of power equipment in smart grid, we are in urgent need of some viable security solutions to ensure secure smart grid communications. Conventional information security solutions, such as encryption/decryption, digital signature and so forth, are not applicable to wireless sensor networks in smart grid any longer, where bulk messages need to be exchanged continuously. The reason is that these cryptographic solutions will account for a large portion of the extremely limited resources on sensor nodes. In this article, a security solution based on digital watermarking is adopted to achieve the secure communications for wireless sensor networks in smart grid by data and entity authentications at a low cost of operation. Our solution consists of a secure framework of digital watermarking, and two digital watermarking algorithms based on alternating electric current and time window, respectively. Both watermarking algorithms are composed of watermark generation, embedding and detection. The simulation experiments are provided to verify the correctness and practicability of our watermarking algorithms. Additionally, a new cloud-based architecture for the information integration of smart grid is proposed on the basis of our security solutions.     

云计算与信息安全

信息安全是当前计算机科学的一个研究热点;云计算是一个新的技术,给信息安全提供了挑战和机遇。介绍了云计算的基本概念、云计算的安全问题,通过云计算用户以及云计算服务提供商两方面分析了云计算中确保信息安全的方法。     

Cloud manufacturing: a new manufacturing paradigm

Combining with the emerged technologies such as cloud computing, the Internet of things, service-oriented technologies and high performance computing, a new manufacturing paradigm – cloud manufacturing (CMfg) – for solving the bottlenecks in the informatisation development and manufacturing applications is introduced. The concept of CMfg, including its architecture, typical characteristics and the key technologies for implementing a CMfg service platform, is discussed. Three core components for constructing a CMfg system, i.e. CMfg resources, manufacturing cloud service and manufacturing cloud are studied, and the constructing method for manufacturing cloud is investigated. Finally, a prototype of CMfg and the existing related works conducted by the authors' group on CMfg are briefly presented.     

面向云的视频会议系统设计与实现

随着人们生活水平的提高,人们对视频会议的要求也越来越高,无论是清晰度还是实时性都有较多要求。与视频会议相关的技术有很多,例如云计算,NGImeetings Cluster框架结构等,云计算在视频系统当中具有很大的作用,可以对系统进行测试,NGImeetings Cluster系统结合云计算的优势可以使NGImeetings Cluster服务框架更加灵活,大大提高系统的服务性能。