ABSTRACT
Resilience is defined as the intrinsic ability of a system to adjust its functioning prior to, during, or following changes and disturbances, so that it can sustain required operations under both expected and unexpected conditions. Since resilience refers to something a system does (a capability or a process) rather than to something the system has (a product), it cannot be measured by counting specific outcomes such as accidents or incidents. This chapter describes an approach to measure the resilience of a system that focuses on the four main abilities that together constitute resilience: the ability to respond, the ability to monitor, the ability to anticipate and the ability to learn. These abilities can be assessed by means of a number of questions and the answers can be represented by an easily comprehensible graphical form. This can be used to compare consecutive measurements, and thereby as a way to support the management of a system’s resilience.
