Probability models for access security system architectures

J. E. Kobza, S. H. Jacobson

Research output: Contribution to journalArticlepeer-review


This paper presents probability models of access control security system architectures. Access control is the process of screening objects; for example people, baggage, entering a secured area in order to detect and prevent entry by threats such as unauthorized personnel, firearms, explosives. A security system architecture consists of device technologies, as well as operational policies and procedures for utilizing the technologies. The probability models are developed based on Type I (a false alarm is given) and Type II (a threat is not detected) errors. The concept of controlled sampling, in which objects may take different paths through the system, is introduced. New architectures consisting of multiple devices and controlled sampling are proposed and analyzed. The results presented indicate that for specific threat levels, multiple-device systems can be identified which outperform single-device systems for certain error probability measures.

Original languageEnglish (US)
Pages (from-to)255-263
Number of pages9
JournalJournal of the Operational Research Society
Issue number3
StatePublished - Mar 1997
Externally publishedYes


  • Probability
  • Risk
  • Systems

ASJC Scopus subject areas

  • Modeling and Simulation
  • Statistics, Probability and Uncertainty
  • Strategy and Management
  • Management Science and Operations Research


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