Comparing Apples and Oranges: How to Elect the Most Probable Targets


There are several target selection systems that use multiple factors to select the most probable targets. Factors can be such things asreplacement costs, strategic importance, and psychological importance. These systems use these factors to rank potential targets in some order. It is clear that comparing disparate factors is very much like comparing apples and oranges. We show that ingeneral, you can't compare apples and oranges and maintain logical consistency. Thus, every multifactorial target rating system is limited in the accuracy of its rankings. We illustrate our resultsusing the CARVER2™ program. We conclude with a discussion of how these multi-factor systems may best be used by planners despite their limitations.

Meeting Name

IEEE Conference on Technologies for Homeland Security (2009: May 11-12, Boston, MA)


Computer Science

Keywords and Phrases

CARVER2; Consistent decisions; Logical consistency; Multi-factor; Multiple factors; Rating system; Target selection; Fruits; Network security; Risk assessment; Risk management; Security systems; Targets; Target ranking

International Standard Book Number (ISBN)


Document Type

Article - Conference proceedings

Document Version


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© 2009 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 May 2009