ADDRESSING THE DEPENDENCY PROBLEM IN ACCESS SECURITY SYSTEM ARCHITECTURE DESIGN

Citation
Je. Kobza et Sh. Jacobson, ADDRESSING THE DEPENDENCY PROBLEM IN ACCESS SECURITY SYSTEM ARCHITECTURE DESIGN, Risk analysis, 16(6), 1996, pp. 801-812
Citations number
11
Categorie Soggetti
Social Sciences, Mathematical Methods
Journal title
ISSN journal
02724332
Volume
16
Issue
6
Year of publication
1996
Pages
801 - 812
Database
ISI
SICI code
0272-4332(1996)16:6<801:ATDPIA>2.0.ZU;2-4
Abstract
The objective of this research is to present a method for evaluating t he performance of access control security systems, such as airport sec urity operations. This requires the examination of security system arc hitectures, which involve security technology devices and the algorith ms that coordinate their operations. Dependence between device respons es in multiple-device systems is a critical practical issue in assessi ng the performance of such architectures, though no results on this pr oblem have appeared in the literature. This paper presents a method fo r evaluating when multiple-device security systems with overlapping ca pabilities are cost-effective. This is achieved using a dependency str ucture for security system devices to quantify how various technologie s interact and to measure the impact of device dependence on system er ror probabilities. A measure of device response dependence for a two-d evice system is defined and its properties are explored, including bou nds on the dependency measure. The effect of dependence on the system Type I and Type II error probabilities is examined for the two-device system. System performance is compared for independent vs. dependent d evice responses and desirable dependence relationships are identified. Results are also presented for a cascading sequence of devices. An ex ample is presented to illustrate the results for the two-device system . Implications of these results are discussed, such as how they can be used to identify the optimal use of security devices and to determine whether new technologies warrant investment.