Towards a Model-Based Methodology for a Highly Resilient Networked Service Provider System

面向高弹性网络服务提供商系统的基于模型的方法

• 批准号: 351342-2007
• 负责人: Zhang, Chris
• 金额: $ 9.99万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=364870
• 关键词: Towards; Model; Based; Methodology; Highly

The goal of the proposed research is to develop a model-based methodology for a highly reliable and resilientservice provider system. Recently, resilience engineering is emerging to be a new paradigm for safetymanagement. Broadly speaking, resiliency is the ability of a system to prevent or adapt to changing conditionsin order to maintain system safety. To ground this research, telecommunication and water supply systems aretaken as examples. Specific objectives of this research include: (1) Develop a general conceptual object modelfor a networked service system: The model captures the service demand, supply, operation constraint, andstructure, behaviour, principle, and social and human environments; (2) Develop a dynamic model for thenetworked service system: The model captures complex demand and supply flows of a networked servicesystem with respect to time and space; (3) Develop a general methodology for predicting failures of anetworked service provider system, in particular those related to the network connection and cascading effect;and (4) Develop a general methodology for designing and planning a networked service system to preventpredicted failures and thus enhancing the system resilience. In designing and planning, both the demand andsupply entities are considered. That is to say, a design decision could simply be made on reconfiguring thedemand along with reconfiguring the structure of the system and reallocating supply resources.This research, if successfully, will advance our understanding of system resiliency in the discipline of safetymanagement and generate new knowledge in the discipline of engineering design and operations management.Safety is extremely important to Canada. Our national security policy says that there can be no greater role for anation than to protect its citizens. The outcome of this research will greatly enhance the safety of Canada bymitigating and preventing failures in networked service systems - particularly critical infrastructure systems.

建议的研究的目标是开发一个基于模型的方法，一个高度可靠和consistentservice provider系统。近年来，弹性工程正在成为安全管理的新范式。从广义上讲，弹性是系统防止或适应不断变化的条件以维护系统安全的能力。为了使本研究有基础，本文以电信和供水系统为例。本研究的具体目标包括：（1）建立网络化服务系统的一般概念对象模型：该模型描述了网络化服务系统的需求、供给、运行约束、结构、行为、原则以及社会和人文环境;（2）建立网络化服务系统的动态模型：该模型描述了网络化服务系统在时间和空间上的复杂需求流和供给流;（3）发展一套预测网络服务供应商系统故障的通用方法，特别是与网络连接和级联效应有关的故障;及（4）发展一套设计和规划网络服务系统的通用方法，以预防可预测的故障，从而提高系统的复原力。在设计和规划中，需求和供应实体都被考虑。也就是说，设计决策可以简单地重新配置需求沿着重新配置系统的结构和重新分配供应资源。这项研究，如果成功的话，将促进我们在安全管理学科中对系统弹性的理解，并在工程设计和运营管理学科中产生新的知识。我们的国家安全政策表明，一个国家的最大作用就是保护其公民。这项研究的结果将大大提高加拿大的安全，减轻和防止网络服务系统的故障-特别是关键基础设施系统。