基于Agent的Web Services自适应工作流模型的研究

如何让企业可以灵敏反应外部环境的变动并快速改变企业内部的流程作业,是传统工作流管理系统面临的最大挑战.提出一种基于Agent的Web Services工作流模型(AW-WFM)来解决这个难题.在这个模型中,基于Agent的技术实现一种工作流协作机制,而Web Services技术为工作流管理系统提供了计算资源.最后,介绍了AW-WFM在上海大学协同办公系统中的应用.     

An agent-based service-oriented integration architecture for collaborative intelligent manufacturing

The rapidly changing needs and opportunities of today's global market require unprecedented levels of interoperability to integrate diverse information systems to share knowledge and collaborate among organizations. The combination of Web services and software agents provides a promising computing paradigm for efficient service selection and integration of inter-organizational business processes. This paper proposes an agent-based service-oriented integration architecture to leverage manufacturing scheduling services on a network of virtual enterprises. A unique property of this approach is that the scheduling process of an order is orchestrated on the Internet through the negotiation among agent-based Web services. A software prototype system has been implemented for inter-enterprise manufacturing resource sharing. It demonstrates how the proposed service-oriented integration architecture can be used to establish a collaborative environment that provides dynamic resource scheduling services.     

基于Agent的ESCCS体系结构研究

高技术战争要求装备保障指挥控制系统具有足够的柔性。通过构建基于Agent的装备保障指挥控制系统的体系结构，描述了装备保障指挥控制工作流的动态执行过程，表明了工作流技术与Agent技术结合能够有效地提高系统的柔性。     

企业间工作流系统中访问控制机制的研究设计

针对企业全球化合作的信息共享和协同工作,对企业间工作流管理系统中的访问控制需求和机制进行了分析和研究,设计了一个包含基于角色的访问控制、细粒度的任务相关的访问控制、工作流级和企业级安全配置的分离、动态职责分离的支持等技术的实施企业间工作流管理系统访问控制的安全机制。     

支持动态联盟的分布式工作流管理系统--AgentFlow

提出了一个支持动态联盟的工作流描述模型，在此基础上提出了一个基于Agent的分布式的软件体系结构，重点分析了基于多Agent的工作流管理系统中工作流的动态集成和工作流的执行。最后讨论了工作流的分布式协作监控。     

A dynamic scheme for scheduling complex tasks in manufacturing systems based on collaboration of agents

The characteristics of scheduling tasks in the real world is a dynamic and challenging issue as the processes and the companies involved may change from time to time. For small flexible enterprises to respond to business opportunities, an effective scheme to facilitate dynamic coalition, share the core competencies and resources and support inter-enterprise collaboration must be developed. Although multi-agent systems (MAS) provide a paradigm for modeling these characteristics, scheduling tasks in MAS is a complex problem due to the computational complexity involved, distributed architecture for scheduling tasks by individual agents and dependency of different agents’ workflows. How to develop a problem solver that can be applied in MAS to achieve coherent and consistent workflow schedules that can meet a customer’s order is an important issue. In this paper, we propose a solution methodology for scheduling workflows in MAS. Our solution combines the multi-agent system architecture to dynamically discover services, workflow and activity models to specify the capabilities of agents, contract net protocol to facilitate negotiation and coordination of agents and optimization theories to optimize the cost for fulfilling an order. A problem solver for scheduling tasks in MAS has been implemented. An application scenario has also been provided to verify our solution methodology.     

企业组织模型结构和建模方法研究

组织建模对于企业实施先进制造战略具有重要意义。文章在研究分析了多种组织结构形式的基础上,应用工作流和过程建模等概念和方法,定义了一种新型的企业组织模型结构,通过引入新型建模元素,可以更为全面地描述企业组织静、动态层次结构,并可以表现业务过程到组织的映射。基于该结构,采用面向对象和构件化方法,提出了一种柔性的、数据表达一致并且可以有力地支持过程模型的动态执行的组织建模方法,并开发了相应的软件工具。     

WebWork: METEOR2's Web-Based Workflow Management System

METEOR₂ workflow management systems consist of both (1) design/build-time and (2) run-time/enactment components for implementing workflow applications. An enactment system provides the command, communication and control for the individual tasks in the workflow. Tasks are the run-time instances of intra- or inter-enterprise applications. We are developing three implementations of the METEOR₂ model: WebWork, OrbWork and NeoWork. This paper discusses WebWork, an implementation relying solely on Web technology as the infrastructure for the enactment system. WebWork supports a distributed implementation with participation of multiple Web servers. It also supports automatic code generation of workflow applications from design specifications produced by a comprehensive graphical designer. WebWork has been developed as a complement of its more heavyweight counterparts (OrbWork and NeoWork), with the goal of providing ease of workflow application development, installation, use and maintenance. At the time of this writing, WebWork has been installed by several of the LSDIS Lab's industrial partners for testing, evaluation and building workflow applications.     

FlowWiki: A wiki based platform for ad hoc collaborative workflows

Traditional workflow management systems provide rich capabilities for designing, executing, and monitoring well-defined collaborative processes. Yet, for many occasions of collaboration, we do not often have sufficient information about who will participate, what activities people will carry out, and how the entire workflow will change. Accordingly, the problem of managing flexible workflows has been receiving increasing attention during the last decade. This paper presents a novel approach by which collaborative workflows can be configured independently as needed by participants and managed in an ad hoc way. Motivated by the emerging paradigm of collective intelligence, the proposed platform, named FlowWiki, provides a set of useful mechanisms to enable dynamic collaborations without requiring prescribed collaboration model. FlowWiki is an extension of conventional wiki system, and it aims for flexibly managing collaborative workflows by allowing on-demand workflow configuration and event-driven interactions.     

Development of an intelligent agent system for collaborative mold production with RFID technology

This paper presents a multi-agents system called agent-based collaborative mold production (ACMP) system. ACMP supports the collaborative and autonomous mold manufacturing outsourcing processes. The mold manufacturing outsourcing processes involve not only many manufacturing sequences but also many collaboration partners. ACMP provides autonomous features to handle three major tasks in outsourcing. They are vendor selection, task selection, and real-time outsourcing task progress tracking. This research applies the analytic hierachy process (AHP) decision models to solve the vendor selection and task selection problems. In addition, radio frequency identification (RFID) technology is adopted to provide a real-time tracking capability for remote collaboration, control and monitoring among outsourcing partners.     

基于PLM的工作流管理系统设计与实现

针对当前的工作流管理系统主要是通用的流程应用,它无法很好地解决产品全生命周期的业务过程协同问题,本文在分析PLM业务协同过程模型的基础上,采用新一代开发技术.Net实现可嵌入的工作流引擎设计和工作流管理系统,提出面向PLM的过程模型和功能模型,解决了不同组织、部门、人员之间的跨地域协同工作问题。     

基于Agent的协同设计中的工作流管理系统

针对CAD协同设计的特点,结合状态图和Agent技术的优势,提出了基于Agent的状态图工作流管理模式,讨论了其关键技术和实现方式,并以建筑设计为例进行了验证,为协同设计中的工作流管理提供了有益的参考。     

基于Web服务组合的业务流程管理系统的分析与设计

Internet/Intranet应用的普及和Web技术的发展,为Web工作流管理系统的实现提供了一个理想的平台,而基于Web的工作流管理服务为异地办公及跨企业的合作提供了良好的基础。采用Web技术已成为新一代工作流管理系统的主要特征。本文研究开发的工作流管理系统原型将Web技术与XML相结合,给出了基于XML的过程定义语言与工作流执行机的设计与实现方法。     

A hybrid multi-agent system architecture for enterprise integration using computer networks

The manufacturing industries are now experiencing fierce pressure of competition from every corner on this planet. In addition, the advancement in computer networks and information technologies has been gradually reshaping the manufacturing companies by shifting from the industrial age to the information era. Due to these elevated competitiveness and advanced computer technology, a number of new manufacturing and management strategies (e.g., CE or CIM) have emerged for the innovation of manufacturing enterprises. Although they have different definitions and scopes, there are several common issues: inter-enterprise functions integration; inter-enterprise resources integration; and collaboration. This paper proposes a new multi-agent system (MAS) architecture to support the inter-enterprise functions/resources integration and collaboration over the networked environment, including the hybrid agent architecture and hybrid network architecture. In contrast to the existing agent architectures, the proposed agent architecture enables agents to exhibit the hybrid (continuous and discrete) behavior and interactions. In addition, our network architecture is more suitable for building the large-scale distributed manufacturing systems that are prone to dynamic random changes of their environment. Based on the proposed MAS architecture, a collaborative product development environment is implemented as a starting point, and a multidisciplinary team-oriented design problem is illustrated to provide the vision of the proposed MAS architecture.     

基于网格服务的电子商务自适应工作流模型

网格服务是分布式应用的新技术，能够为电子商务的工作流框架设计和工作流管理提供更为先进的技术支持。基于网格服务的工作流管理系统具有较好的自适应性、分布性和动态性。自适应工作流框架（AWFF）是一个分层结构，将工作流模型分为功能层和实例层。功能层定义了整个工作流的基础功能模型，实例层以事件触发机制为支撑，可根据动态的网格环境和多变的客户需求，通过网格服务实现进行自适应。将自适应工作流框架应用到网络电子商务系统中，能够更好地适应分布的、动态环境，提高整个流程的可控性和管理效率。     

基于Web的工作流管理系统的设计与实现

Internet／Intranet应用的普及和Web技术的发展,为Web工作流管理系统的实现提供了一个理想的平台,而基于Web的工作流管理服务为异地办公及跨企业的合作提供了良好的基础,采用Web技术已成为新一代工作流管理系统的主要特征：文中研究开发的工作流管理系统原型将Web技术与XML相结合,给出了基于XML的过程定义语言与工作流执行机的设计与实现方法。     

The design of a JADE-based autonomous workflow management system for collaborative SoC design

Given a fast changing electronics goods marketplace, designers of integrated circuits and components need to be more competitive, efficient, flexible, and use collaborative workflow to reduce time-to-market and a project’s life cycle. In recent years, agent-based workflow management systems (WfMS) have been widely used to monitor and control business design processes. In this paper, intelligent agents are applied to the collaborative system-on-chip (SoC) design environment. The proposed JADE-based autonomous workflow management system (JAWMS) uses a workflow coordination mechanism and an agent integration mechanism to enable the analysis, management and interaction of automated design processes. The workflow coordination mechanism uses five domain specific agents to perform the workflow enactment services and a generic agent to control the system flow logic. The system kernel of JAWMS follows the specifications of the workflow reference model provided by the workflow management coalition (WfMC). The agent integration mechanism supports an agent to interact with other JADE-based agent platforms and to coordinate and monitor workflow coordination messages. All agents are written in the Java language using the JADE platform and work together to perform flexible, adaptive and dynamic design tasks in an autonomous and collaborative way. JAWMS facilitates SoC design and team interaction in a collaborative but distributed product development environment.     

语义驱动模式访问控制模型

针对现有的访问控制模型还不能满足网络化制造系统的访问控制需求,提出一种语义驱动模式新型访问控制模型,应用语义实体与过滤器相结合,以静态的配置实现动态的资源控制,解决了系统大规模和动态性带来的安全隐患问题;应用流程约束基实现了对流程管理的支持．模型能够支持网络化制造系统的大规模、动态性和群组协作．     

Supporting virtual enterprise systems using agent coordination

Open environments like the Internet or corporate intranets enable a large number of interested enterprises to access, filter, process and present information on an as-needed basis. These environments support modern applications, such as virtual enterprises and interorganisational workflow management systems, which involve a number of heterogeneous resources, services and processes. However, any execution of a virtual enterprise system would yield to disjoining and error-prone behaviour without appropriate techniques to coordinate the various business processes. This paper reports on the design and implementation of a flexible agent-based framework for supporting the coordination of virtual enterprises and workflow management systems. The paper also shows how an agent coordination infrastructure, which is explained by social constraints, can impact on the engineering of highly dynamic virtual enterprises and workflow management systems by presenting a simple case study.     

基于智能主体的供需网协作技术

对智能主体(Agent)在供需网中的概念进行了定义，对其心智活动进行了分析。通过Agent的协作过程和协作通信机制的研究，探讨了基于Agent的供需网协作技术，说明了Agent技术为供需网管理理念的实施提供了重要的技术支持。