Threat Trees, Platform Trees, and Their Connection
Abstract
The Threat Oriented Survivability Optimization Model (TOSOM), is a simple, first-order model used to evaluate the worth of suites of countermeasures in protecting a combat platform. In a typical TOSOM study, one of the first steps is to develop the threats that the platform in question will encounter. These threats are arranged in threat tree form; that is, the threats are broken into classes of threats (for example, Direct Fire, Indirect Fire, Air), and then each class is divided into a subclass; this process continues until the actual threats encountered by the platform in question are enumerated. Each branch of the tree is also given a relative probability of occurrence (that is, the sum of the probabilities of all branches emanating from each node of the tree must be equal to 1). Thus, ignoring the special tree structure arrangement of the threats, a threat tree is in essence the distribution of threats attacking a single platform. In a system-of-systems environment each platform will possess its own threat tree. Also of interest in such an environment is what will be called a platform tree; that is, the distribution of platforms that are attacked by a single type of threat. In this paper we wish to examine threat trees, platform trees, their connection, and how they might be combined in order to provide a comprehensive view of the battlefield threat situation encountered by a system-of-systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 13, 2004
- Accession Number
- ADA462316
Entities
People
- Daniel Hicks
- Jack Reed
- W. Andrew Jackson
Organizations
- Tank-automotive and Armaments Command