Critical infrastructure systems (CISs), increasingly suffering from various hazards in recent decades, are in urgent need of improving their resilience. So far few approaches for CISs resilience improvement have recognized that different resilience improvement efforts could have synergetic or conflicting correlations between them. There lack systemic approaches for transforming resilience improvement requirements into coordinated and implementable measures. To address this gap, the current study proposes a quality function deployment (QFD)-based framework for strengthening the resilience of CISs. The proposed framework involves different stages of the CISs lifecycle, and takes into consideration the correlations between resilience improvement efforts at these stages. It can transform resilience criteria into system properties, component characteristics, implementation processes and controlling factors successively, which is facilitated with a series of houses of quality (HoQs). Using a case study of electric power system, we demonstrated the feasibility of the proposed framework with detailed explanations of the design and implementation of the first HoQ. The results of the case study showed that the proposed framework could identify the trade-offs between resilience improvement efforts at different stages of the CISs lifecycle, and take into account their relationships with resilience criteria and the correlations among them to work out optimized solutions for improved CISs resilience.

关键基础设施系统（CIS）近几十年来日益遭受各种危害，因此迫切需要提高其弹性。到目前为止，很少有用于CIS弹性改进的方法已经认识到，不同的弹性改进工作可能在它们之间具有协同或冲突的相关性。缺乏将复原力改进要求转换为协调和可实施的措施的系统方法。为了解决这一差距，当前的研究提出了一个基于质量功能部署（QFD）的框架，以增强CIS的弹性。拟议的框架涉及CIS生命周期的不同阶段，并考虑了这些阶段的弹性改进工作之间的相关性。可以将弹性标准转换为系统属性，组件特性，实施过程和控制因素相继出现，一系列的质量屋（HoQs）促进了这一点。通过对电力系统的案例研究，我们通过第一个HoQ的设计和实现的详细说明，证明了所提出框架的可行性。案例研究结果表明，所提出的框架可以确定CIS生命周期不同阶段的弹性改进工作之间的折衷，并考虑到它们与弹性标准的关系以及它们之间的相关性，从而为改进而制定优化的解决方案。 CIS的弹性。我们通过第一个HoQ的设计和实施的详细说明，证明了所提出框架的可行性。案例研究结果表明，所提出的框架可以确定CIS生命周期不同阶段的弹性改进工作之间的折衷，并考虑到它们与弹性标准的关系以及它们之间的相关性，从而为改进而制定优化的解决方案。 CIS的弹性。我们通过第一个HoQ的设计和实施的详细说明，证明了所提出框架的可行性。案例研究结果表明，所提出的框架可以确定CIS生命周期不同阶段的弹性改进工作之间的权衡，并考虑它们与弹性标准的关系以及它们之间的相关性，从而为改进而制定优化的解决方案。 CIS的弹性。