基于VPN技术的ERP网络安全系统设计

从ERP系统发展的需要出发,在分析VPN关键技术的基础上,介绍了一种基于VPN的ERP广域网组网方案。     

VPN在中小型企业ERP系统安全网络架构中的应用

在分析了ERP系统数据的商业机密性、介绍了VPN技术组网的安全性的基础上,以一个具体的企业为案例,分析了该企业的网络现状,介绍了其VPN组网需求。以此为前提,对该企业进行了详细的VPN组网方案设计与实施,并分析了其应用效果。     

ERP应用首选SSL VPN

随着SSL VPN技术和市场的不断发展,现在已经广泛应用于包括ERP在内的多种信息系统。当然,对于ERP和SSL VPN的结合,焦点在于技术和产品的先进性。因此,在选择SSL VPN产品时,用户必须根据自身特点和不同的业务模式,选择适合自己的SSLVPN产品。企业业务的发展,也需要能够实现对ERP系统具有高度安全性和稳定性的访问。远程安全访问是未来业务趋势,尤其国内笔记本销售在逐年增长情况下,这种移动的计算通信工具迫切需要专门为其量身定做的远程安全访问方案。而伴随企业信息化程度的加深,企业和分支、企业和外地员工之间联系将不随地…     

VPN在OA办公系统中的应用

从SSL VPN技术与IP Sec VPN技术的基本运用入手,分析了两者的优势与缺陷,并且结合实例,对企业运用VPN技术应用进行了总结,提出了关于SSL VPN技术在实现企业异地移动办公时的应用模式。     

VPN技术在企业中的应用

为了保障企业私有数据传输的安全快捷和高效,VPN技术已经成为公司员工或者合作伙伴远程安全访问公司资源的重要手段.本文从企业对VPN技术的需求出发,介绍了目前得到较为广泛应用的三种VPN技术,IPSec VPN,SSL VPN和MPLS VPN,讨论了其各自的区别,分析了其优点和不足,以及在何种需求和条件下这三种VPN该如何选择.     

VPN技术应用之校园网

文章从VPN的技术特点以及在校园网建设中的服务器配置和客户机配置几个方面做了系统的阐述,最后对VPN三种安全性技术进行了分析,使VPN技术能真正有效安全地为我们服务.     

VPN技术应用之校园网

文章从VPN的技术特点以及在校园网建设中的服务器配置和客户机配置几个方面做了系统的阐述,最后对VPN三种安全性技术进行了分析,使VPN技术能真正有效安全地为我们服务。     

基于虚拟网卡的SSL VPN体系结构的研究*

为了打破传统的SSL VPN（secure socket layer virtual private network）局限于支持Web的应用,不能满足诸如OA、ERP、FTP等非Web应用需求的局限,提出了一种基于虚拟网卡的SSL VPN（VNICB-SSL VPN）体系结构。基于虚拟网卡的技术成功地解决了NDIS（network driver interface specification,网络驱动接口规范）框架中的软件冲突问题,也避免了WinSock2动态链接库重载、传输层过滤驱动截获网络报文不够彻底的问题。     

SSL/IPSec打造一体化VPN

为了保障VPN传输私有数据的安全性,需要特定的安全技术用于创建和维护VPN网络。本文针对其中较多采用的两种VPN技术——基于SSL和IPSec协议的VPN,从应用范围、使用复杂性、安全性等几个方面进行了比较分析,并提出SSL/IPSec一体化解决VPN远程访问的方案。     

网络安全VPN关键技术研究及其应用

本文分析了影响VPN技术安全性的因素,着重研究了网络安全VPN关键技术工作原理,剖析了VPN技术利弊,讨论了VPN技术的实际应用。     

ERP system usage and benefit: A model of antecedents and outcomes

ERP system usage has been identified as a critical factor in attaining the benefit from an ERP installation. However, the specific antecedents of ERP usage and its impact on ERP benefit remains largely unknown. Drawing on absorption capacity theory, this study develops a theoretical model that examines the mediating effect of ERP system usage on ERP benefits. Similarly, the study also identifies the antecedents of ERP system usage. A model is tested using the responses of 157 ERP system end-users across the United States and the results suggest that ERP system usage is directly related ERP benefit. However, the relationship is moderated by the degree of knowledge integration mechanisms within the firm. Consistent with the proposed model, the results also reveal that technical resources, organizational fit and the extent of ERP implementation are key drivers of ERP system usage. The research findings advance our knowledge on how managers can enhance ERP usage and realize optimal ERP benefits.     

基于版本管理企业需求驱动的企业资源计划批量定制研究

ERP 实施成功率低已经成为制约 ERP 效益发挥的一大瓶颈因素。这篇文章认为必须从企业的需求出发,在 ERP 软件产品一侧下功夫,提出了基于版本管理企业需求驱动的企业资源计划软件批量定制开发模型,详细论述了 ERP 产品开发中的版本管理,基于企业需求分析的动态企业建模,批量定制的企业资源计划产品生产等问题,同时优化了 ERP 软件开发过程中的版本管理。解决了 ERP 产品柔性、适应性和 ERP 产品敏捷生产的问题,为提高我国企业 ERP 产品的实施成功率,探索出一条新途径。     

面向领域敏捷定制ERP生产中的多级版本管理研究*

提出面向领域敏捷定制ERP产品开发模型,重点论述面向领域敏捷ERP定制过程,给出了软件开发过程中的 ERP软件构件版本管理、ERP构件组版本管理以及ERP产品的版本管理模型和详细的解决方案。解决了ERP产品柔性、适应性和ERP产品敏捷生产的问题,为提高我国企业ERP产品的实施成功率,探索出一条新途径。     

面向领域敏捷定制ERP生产中的多级版本管理研究

提出面向领域敏捷定制ERP产品开发模型,重点论述面向领域敏捷ERP定制过程,给出了软件开发过程中的 ERP软件构件版本管理、ERP构件组版本管理以及ERP产品的版本管理模型和详细的解决方案.解决了ERP产品柔性、适应性和ERP产品敏捷生产的问题,为提高我国企业ERP产品的实施成功率,探索出一条新途径.     

The critical success factors for ERP implementation: an organizational fit perspective

Since early 1990s, many firms around the world have shifted their information technology (IT) strategy from developing information systems in-house to purchasing application software such as enterprise resource planning (ERP) systems. IT managers responsible for managing their organization’s ERP implementation view their ERP systems as their organizations’ most strategic computing platform. However, despite such strategic importance, ERP projects report an unusually high failure rate, sometimes jeopardizing the core operations of the implementing organization. This study explores the root of such high failure rate from an “organizational fit of ERP” perspective. Based on the relevant literature, we define the concept of organizational fit of ERP and examine its impact on ERP implementation, together with ERP implementation contingencies. The results from our field survey of 34 organizations show that ERP implementation success significantly depends on the organizational fit of ERP and certain implementation contingencies.     

面向客户需求ERP产品可重构开发模型研究

目前ERP系统在开发中主要存在两个问题:一是ERP产品在开发的过程中存在大量的重复工作,系统的开发周期比较长;二是ERP产品的刚性太强,系统的柔性差,适应性不强。针对上述问题,文章提出了客户需求驱动,可重构ERP软件开发模型,阐述了基于客户需求分析的动态企业建模、可重构ERP软件开发的主要技术和系统构建方法。     

Drivers and effects of enterprise resource planning post-implementation learning

The use of enterprise resource planning (ERP) systems has grown enormously since 1990, but the failure to completely learn how to use them continues to produce disappointing results. Today's rapidly changing business environment and the integrative applications of ERP systems force users to continuously learn new skills after ERP implementation. This study explores the effects of post-implementation learning on ERP usage and ERP impact and identifies the factors that can impact post-implementation learning, such as social capital and post-training self-efficacy. This study employs a survey method to examine the perceptions of ERP users. The theoretical model is tested by using structural equation modelling on a dataset of 812 users. This study finds that post-implementation learning has a significant positive effect on ERP usage and ERP impact, and that social capital and post-training self-efficacy are important antecedent factors of post-implementation learning. Post-training self-efficacy also significantly affects ERP usage and ERP impact. The implications for research, practice and future research directions are discussed.     

基于电子商务的ERP系统选型

通过对传统ERP局限性和功能拓展的分析,讨论基于电子商务的ERP应遵循的原则,从ERP的不同角度探讨了ERP的关键决策因素,给出了企业选择ERP步骤。     

A framework for the ex-ante evaluation of ERP software

It has been widely reported that a large number of ERP implementations fail to meet expectations. This is indicative, firstly, of the magnitude of the problems involved in ERP systems implementation and, secondly, of the importance of the ex-ante evaluation and selection process of ERP software. This paper argues that ERP evaluation should extend its scope beyond operational improvements arising from the ERP software/product per se to the strategic impact of ERP on the competitive position of the organisation. Due to the complexity of ERP software, the intangible nature of both costs and benefits, which evolve over time, and the organisational, technological and behavioural impact of ERP, a broad perspective of the ERP systems evaluation process is needed. The evaluation has to be both quantitative and qualitative and requires an estimation of the perceived costs and benefits throughout the life-cycle of ERP systems. The paper concludes by providing a framework of the key issues involved in the selection process of ERP software and the associated costs and benefits.     

Segmenting and mining the ERP users’ perceived benefits using the rough set approach

Enterprise Resource Management (ERP) systems are viewed as a promising and powerful information technology solution for dealing with the impact of competition advancements and enabling corporations to improve productivity and to operate more efficiently. Although implementations of ERP are complex and costly, corporations may actively adopt and engage in such ERP implementations if perceived benefits exceed perceived risks and costs. A number of studies have contributed to discussion of important factors related to ERP introduction or implementation. Other studies have listed various potential benefits which may be obtained when implementing ERP systems. However, few studies attempt to deepen the analyses of the ERP users’ perceived benefits in order to gain meaningful findings for promoting ERP implementations. Typically, elements of a set of ERP benefits do not necessarily share the same importance. Moreover, a given ERP benefit may be accorded a variety of very different levels of importance by different corporations. This paper attempts to segment the ERP users into two subgroups according to the notion of Herzberg’s Motivation-Hygiene theory, and further, to uncover imperative perceived benefits for distinct subgroups of ERP users employing the rough set theory. The results of this study should provide better understanding and knowledge of strategic implications for both ERP system adopters and vendors, and thus advance the scope of ERP implementations.