Fragility: The Next Wave in Critical Infrastructure Protection

摘要

In North America today, we are about to embark on a significant effort to repair, or even upgrade, many aspects of our infrastructure. Many of these efforts are linked to economic recovery packages. Others are based on sheer need. The challenge for decision makers and planners involves ensuring that scarce economic resources are put to their best use. Understanding the concept of fragility plays a pivotal part in reaching that understanding.Fragility, like many other systemsparticularly Information Technology (IT ) systemsworks on the concept of subjects and objects. Subjects are those entities that seek to exploit the services (or capacity) offered by the object. Objects, on the other hand, are those entities that deliver some good or service to the overall system. Of course, something may act as the object in one pairing and the subject in another pairingthey are not exclusive in nature.