担保业务管理系统工作流的Petri网建模

应用Petri网建模与工作流技术,构建了担保业务管理系统工作流的Petri网模型,并对一个担保业务管理系统工作流实例,给出了基于Petri网化简分析方法的模型化简与性质验证,表明该模型能够对担保业务管理系统工作流进行有效的分析和验证,从而为担保业务管理系统工作流分析提供了理论基础。     

Cycles in economic systems with open labor markets

A dynamic macromodel of an economic system with a monopsonic labor market and variable labor resources is considered. The initiation conditions for classical business cycles are investigated for this model. Bifurcation analysis of the model is performed to estimate the effect of the minimum wage on the way such cycles form. The results of theoretical analysis are supplemented with numerical experiments. __________ Translated from Kibernetika i Sistemnyi Analiz, No. 4, pp. 48–72, July–August 2008.     

一种新的商务手机结构方式设计

本设计结合TCL的设计理念,通过对概念的局部创新赋予手机产品突出的亮点,使用科技美学化的设计语言赋予产品夺目的外观,达到形式与外观的统一。满足商务人士对手机产品功能、结构、外观等方面的要求。在克服现有的双向开合手机转轴占用机身空间、结构不够坚固、操作模式单一等不足,特提出通过主轴旋转实现手机双向开合的结构设计。     

Business Object Modeling, Validation, and Mediation for Integrating Heterogeneous Application Systems

When different business organizations come together to conduct a joint business in a virtual enterprise environment, their application systems need to have a convenient way to specify the services needed from other systems and to transfer data needed by these services. The transferred data needs to be validated and, in some cases, mediated to meet the constraints and data representation requirements of both the source and target application systems. Ideally, the validation and mediation tasks should be done outside of the legacy application systems so that these systems do not have to be modified. In this work, the Business Object Documents (BODs) introduced by the Open Applications Group (OAG) are used for specifying business operations and transferring data among application systems. We use an active object model to model BODs. The model captures not only the data attributes and methods associated with these business objects, but also events and rules for specifying and triggering the enforcement of attribute constraints and inter-attribute constraints and the activation of data mediation operations. The conceptual models of these BODs with their added semantics are used to generate entity classes, converters and skeletal programs needed for enforcing constraints and for converting data. These generated object classes and software components in Java constitute the platform-independent adapters through which heterogeneous application systems inter-operate over CORBA and RMI communication infrastructures. A distributed approach to data validation and mediation is used. It allows the generated code for validation and mediation to be distributed and processed at different sites, thus avoiding the potential network bottleneck of a centralized approach to the validation and mediation of business object documents.     

Cooperation coordination in virtual enterprises

Coordination of activities is a determinant element in virtual enterprises. Proper coordination policies supported by flexible coordination mechanisms are necessary to ensure the cooperation among partner enterprises. This paper presents the PRODNET approach to support coordination in virtual enterprises. The adopted model considers on flexibility and configurability as the key aspects to cope with the large diversity of expectable scenarios and operating policies in the virtual enterprise environment. A workflow based approach for coordination is described and especial emphasis is put on a multi-level coordination view. The developed software modules that support the coordination mechanisms are presented, and finally some directions for further research are given.     

Information agent technology for the Internet: A survey

The vast amount of heterogeneous information sources available on the Internet demands advanced solutions for acquiring, mediating, and maintaining relevant information for the common user. Intelligent information agents are autonomous computational software entities that are especially meant to (1) provide pro-active resource discovery, (2) resolve information impedance of information consumers and providers, and (3) offer value-added information services and products. These agents are supposed to cope with the difficulties associated with the information overload of the user, preferably just in time.

Based on a systematic classification of intelligent information agents, this paper presents an overview of the basic key enabling technologies needed to build such agents, and respective examples of information agent systems currently deployed on the Internet.     

A knowledge-based approach for handling exceptions in business processes

This paper describes a novel knowledge-based methodology and toolset for helping business process designers and participants better manage exceptions (unexpected deviations from an ideal sequence of events caused by design errors, resource failures, requirement changes, etc.) that can occur during the enactment of a process. This approach is based on an on-line repository exploiting a generic and reusable body of knowledge, which describes what kinds of exceptions can occur in collaborative work processes, how these exceptions can be detected, and how they can be resolved. This work builds upon previous efforts from the MIT Process Handbook project and from research on conflict management in collaborative design. This revised version was published online in July 2006 with corrections to the Cover Date.     

The Future of Enterprise System-Enabled Organizations

Companies are beginning to expect to gain strategic value from the implementation and operation of enterprise systems (ES). Currently dominating trends in business are sense-and-respond business models, globalization, corporate realignment, virtual organizations and accelerated product life-cycles. Available and evolving features of enterprise systems are summarized in a framework, concluding that present capabilities of enterprise systems correspond only to some extend to the new practices required to respond to these corporate challenges, and that ERP vendors strive to fill the gap. By integrating higher management functions enterprise systems will also impact on the practice of executives. The future work of an executive is illustrated by a fictitious example.     

A case study on business process recovery using an e‐government system

Business processes have become one of the key assets of organization, since these processes allow them to discover and control what occurs in their environments, with information systems automating most of an organization's processes. Unfortunately, and as a result of uncontrolled maintenance, information systems age over time until it is necessary to replace them with new and modernized systems. However, while systems are aging, meaningful business knowledge that is not present in any of the organization's other assets gradually becomes embedded in them. The preservation of this knowledge through the recovery of the underlying business processes is, therefore, a critical problem. This paper provides, as a solution to the aforementioned problem, a model‐driven procedure for recovering business processes from legacy information systems. The procedure proposes a set of models at different abstraction levels, along with the model transformations between them. The paper also provides a supporting tool, which facilitates its adoption. Moreover, a real‐life case study concerning an e‐government system applies the proposed recovery procedure to validate its effectiveness and efficiency. The case study was carried out by following a formal protocol to improve its rigor and replicability. Copyright © 2011 John Wiley & Sons, Ltd.     

基于作业成本的服装企业业务过程分析方法

提出基于作业成本的业务过程分析模型.以服装企业为例,分析了成衣生产流程.探讨从业务过程分析模型以及业务流程模型导出资源层次结构的方法.给出了作业成本的计算方法,利用其数据表完成作业成本计算.