Semantic Extraction for Multi-Enterprise Business Collaboration

Semantic extraction is essential for semantic interoperability in multi-enterprise business collaboration environments.Although many studies on semantic extraction have been carried out,few have focused on how to precisely and effectively extract semantics from multiple heterogeneous data schemas.This paper presents a semi-automatic semantic extraction method based on a neutral representation format(NRF)for acquiring semantics from heterogeneous data schemas.As a unified syntax-independent model,NRF remo...     

新一代CIMS应用集成平台系统体系结构

企业重组需要更灵活、更具柔性的新一代 Ｃ Ｉ Ｍ Ｓ应用集成平台的支持。为此提出了柔性软件系统的基本概念,给出了基于软件代理的软件支撑系统和基于软件组件的应用软件系统两部分组成的柔性软件系统体系结构模型以及柔性软件系统的 Ｂ Ｐ Ｒ Ｏ（基于经营过程重用对象）工程方法。在此基础上提出了 Ｃ Ｉ Ｍ Ｓ应用集成平台系统结构的新构想,给出了分布式的整体结构模型和层次化的单元结构模型,介绍了基于重用的软件工程经营过程方法。最后指出更灵活、更具柔性的新一代 Ｃ Ｉ Ｍ Ｓ应用集成平台能够适应我国企业重组带来的新变化,具有重要的实际应用价值。     

基于分布式对象计算技术实现动态企业建模

为了实现企业结构、行为及信息等方面的集成并最终实现基于模型驱动的动态企业优化设计、分析与操作 ,文中从提高企业组织和运作的柔性的角度出发 ,系统分析了动态企业建模的技术内涵 ,讨论了动态企业建模环境及其基本构成、典型化的企业模型层次结构及各模型之间的关系 ,提出了基于分布式对象计算技术实现动态企业建模的策略及其系统实现的方案。动态企业建模技术使企业的应用系统能紧密匹配企业经常改进的业务流程和业务活动 ,减少了企业系统的复杂性 ,增加了应用柔性     

Schedulability Analysis Method of Timing Constraint Petri Nets

IntroductionTiming constraint Petri nets[1] (TCPNs) are a classof Petri nets that have general time constraints.They synthesize the common characteristics of timePetri nets[2 ,3] and timed Petri nets[4 ] with thetheoretical foundation of classical Petri nets (PNs)and the representation of timing constraints.TCPNs use weak firing rules,which means thatanenabled transition can either fire or not firedepending on the job scheduler. The schedulabilityanalysis of TCPNs was analyzed by Tsai …     

应用集成平台总体设计技术和集成机制研究

介绍了计算机集成制造系统应用集成平台的产生背景和基本概念。在总结了国内外集成平台技术的研究成果和现有软件产品功能的基础上，提出了应用集成平台总体设计和开发应遵循的原则，给出了应用集成平台开发应采用的方法及集成平台必须具有的功能。定义了ＣＩＭＳ应用的集成的三种集成机制，给出了集成平台功能结构图和层次结构图。本文所设计和开发的集成平台具有开放性、先进性。它的开发可以为企业的ＣＩＭＳ实施提供有力的支持     

Service-Oriented Enterprise Network Performance Analysis

The service-oriented architecture (SOA) and the model-driven architecture (MDA) have been recognized as major evolutionary steps in enterprise integration (EI) in service-oriented computing environments. Service-oriented enterprise (SOE) networks (SOEN) are emerging with the significant advances of EI, SOA, and MDA. However, the implementation and optimization of SOEN is still lacking integrated SOA, MDA, and performance analysis and optimization (PAO) methods. This paper introduces an integrated solution of SOA and MDA with a simulation-based three-stage PAO method with stage 1 being an analytic hierarchy process (AHP)-based comprehensive performance calculation for service matching and binding, stage 2 being a simulation-based comprehensive performance evaluation for business process/service composition, and stage 3 being a business process simulation-based performance optimization for SOEN. The SOE architecture, performance analysis framework, performance indicators, and performance operators are discussed. The system uses MDA as the system development philosophy, SOA as the system implementation infrastructure, and the simulation-based PAO methods to analyze and optimize the SOEN performance. A case study of the SOEN illustrates the usage of the integrated solution.     

基于工作流的企业过程的建模和仿真技术研究

过程集成是提高企业运行效率、增强企业柔性的一种全面集成方式 ,企业建模和仿真可以为企业过程的分析和优化提供依据 ,是实现过程集成的重要支持技术。工作流技术和集控 Petri网方法作为企业建模和仿真的支撑技术 ,各自都有着明显的优点和不足 ,而它们二者之间具有很强的互补性 ,如果能够将二者巧妙的结合起来 ,将为实现过程集成提供有效的帮助。首先给出了基于工作流的企业过程的建模、仿真、使能系统的模型和体系结构 ,然后介绍了将工作流模型转化为集控 Petri网来实现企业过程仿真的方法以及仿真过程中时间和成本等性能参数的计算和分析方法     

System Architecture for CIMOSA Model Execution

ＳｙｓｔｅｍＡｒｃｈｉｔｅｃｔｕｒｅｆｏｒＣＩＭＯＳＡＭｏｄｅｌＥｘｅｃｕｔｉｏｎＦａｎＹｕｓｈｕｎ（范玉顺），ＧｕｎｔｅｒＳｐｕｒ＋ＤｅｐａｒｔｍｅｎｔｏｆＡｕｔｏｍａｔｉｏｎ，ＴｓｉｎｇｈｕａＵｎｉｖｅｒｓｉｔｙ，Ｂｅｉｊｉｎｇ１０００８４；＋Ｆ...     

基于集控Petri网方法的面向对象建模和仿真工具

传统的Ｐｅｔｒｉ网方法不能解决实际系统运行中出现的不确定性,资源共享等问题。该文定义了一种扩展有色Ｐｅｔｒｉ网——集控Ｐｅｔｒｉ网方法。它通过引入过程变迁,不确定性弧,全局库所和赋予每个托肯一个数据结构增加了Ｐｅｔｒｉ网的建模能力。重点讨论了使用面向对象方法设计和开发的基于集控Ｐｅｔｒｉ网方法的建模和仿真工具。给出系统的面向对象的类层次结构、核心数据结构和用户界面为了便于和其它建模和仿真工具进行有效的集成,所设计的软件采用了中性文件的机制来保存模型结构和数据。     

Implementation of WPDL Conforming Workflow Model

Workflow process definition language (WPDL) facilitates the transfer of workflow process definitions between separate workflow products. However, much work is still needed to transfer the specific workflow model to a WPDL conforming model. CIMFlow is a workflow management system developed by the National CIMS Engineering Research Center. This paper discusses the methods by which the CIMFlow model conforms to the WPDL meta-model and the differences between the WPDL meta-model and the CIMFlow model. Some improvements are proposed for the WPDL specification. Finally, the mapping and translating methods between the entities and attributes are given for the two models. The proposed methods and improvements are valuable as a reference for other mapping applications and the WPDL specification.