Scalable Enterprise Systems Phase II: Discrete Event System Specification (DEVS) as a Formal Modeling and Simulation Framework for Scaleable Enterprise Design

可扩展企业系统第二阶段：离散事件系统规范 (DEVS) 作为可扩展企业设计的正式建模和仿真框架

• 批准号: 0122227
• 负责人: Bernard Zeigler
• 金额: $ 35万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0122227&HistoricalAwards=false
• 关键词: Scalable; Enterprise; Systems; Phase; II

This Scalable Enterprise Systems Phase II project will develop the Discrete Event System Specification (DEVS) Formal Framework for Scalable Enterprise Design and extend earlier-developed DEVS-based modeling and simulation environments to support several real world test cases. As the Internet expands toward 1 billion nodes forming a highly interconnected and computationally powerful medium, and companies increase specialization and horizontal layered organization, new complexity and dynamics are emerging. Scalability, the ability to avoid performance degradation and system breakdown as the scale of activity greatly increases, is one of the urgent global problems that needs to be addressed. This research will seek to enhance scalability at three inter-related levels of abstraction: the Enterprise Architecture level, the Information Technology Infrastructure level, and the Modeling and Simulation level. Earlier research developed a theoretical foundation for architecting a major responsibility of enterprise systems -- to ensure that the right information about the enterprise is available to decision makers at the right time. Having extended the DEVS formalism to express time-critical behaviors in enterprise data management, the researcher proposes to implement the extended DEVS functionality by suitably extending the distributed real-time execution environment previously developed in NSF-sponsored research. This environment will be tested by two diverse applications: a small scale but complete and real factory automation test bed and a large-scale web-hosting service for e-business. The Integrated Manufacturing Technology Initiative (IMTI) sponsored by the primary governmental funding agencies (NIST, DOE, NSF, and DARPA) states that modeling and simulation are emerging as key technologies to support manufacturing in the 21st century. This research will attempt to fill in some of the gap between the current state of the art and the IMTI vision of the future. In this vision enterprise processes, equipment and systems are linked via a robust communications infrastructure that delivers the right information at the right time; and integrated enterprise management systems that ensure that decisions to be made in real-time and on the basis of enterprise-wide impact. Achieving scalability in M&S and IT infrastructure will enable a wide array of M&S studies and implementations, as well as supporting the scalability of the future M&S-based networked, extended and distributed enterprise systems envisioned by IMTI.

该可扩展企业系统第二阶段项目将开发用于可扩展企业设计的离散事件系统规范（DEVS）正式框架，并扩展早期开发的基于DEVS的建模和仿真环境，以支持几个真实世界的测试用例。随着互联网向10亿个节点扩展，形成一个高度互联和计算能力强大的媒介，以及公司日益专业化和水平分层组织，新的复杂性和动态正在出现。可伸缩性，即随着活动规模的大幅增加而避免性能下降和系统崩溃的能力，是一个迫切需要解决的全球性问题。本研究将寻求在三个相互关联的抽象层次上增强可伸缩性：企业架构层次、信息技术基础设施层次和建模与仿真层次。早期的研究为构建企业系统的主要职责开发了理论基础——确保决策者在正确的时间获得关于企业的正确信息。通过扩展DEVS的形式来表达企业数据管理中的时间关键行为，研究人员提出通过适当扩展以前在nsf资助的研究中开发的分布式实时执行环境来实现扩展的DEVS功能。这个环境将通过两个不同的应用程序进行测试：一个小规模但完整和真实的工厂自动化测试平台和一个用于电子商务的大型网络托管服务。由主要政府资助机构（NIST、DOE、NSF和DARPA）赞助的集成制造技术计划（IMTI）指出，建模和仿真正在成为支持21世纪制造业的关键技术。这项研究将试图填补目前的艺术状态和IMTI对未来的愿景之间的一些差距。在这个愿景的企业流程中，设备和系统通过一个健壮的通信基础设施连接起来，在正确的时间提供正确的信息；并且集成了企业管理系统，确保决策能够在实时的基础上对整个企业产生影响。实现M&amp；S和IT基础设施的可扩展性将使M&amp；S的广泛研究和实现成为可能，并支持IMTI设想的未来基于M&amp的网络化、扩展和分布式企业系统的可扩展性。