NCJ Number
59817
Journal
NUCLEAR MATERIALS MANAGEMENT Volume: 6 Issue: 3 Dated: (FALL 1977) Pages: 292-301
Date Published
1977
Length
10 pages
Annotation
THIS PROPOSED METHOD FOR EVALUATING THE PERFORMANCE OF A NUCLEAR FACILITY SAFEGUARDS SYSTEM CONSISTS OF A SERIES OF ANALYTICAL TOOLS WHICH DETERMINE THE SYSTEM'S CAPABILITY FOR CRIME PREVENTION.
Abstract
THE VISA EVALUATION METHOD ASSESSES THE PERFORMANCE OF A COMPLETE FACILITY SAFEGUARDS SYSTEM BY COMBINING THE PERFORMANCE DATA ON INDIVIDUAL ELEMENTS INTO AN OVERALL FIGURE OF MERIT. THE FIGURE OF MERIT IS RELATED TO THE SYSTEM PERFORMANCE AGAINST A SPECIFIED THREAT OR THREAT SPECTRUM. THE MOST IMPORTANT FEATURE OF VISA IS THAT IT SATISFIES A REQUIREMENT FOR COMPLETENESS BY CONSIDERING ALL KNOWN IMPORTANT SAFEGUARDS AS THEY CORRESPOND TO ALL REASONABLE ROUTES WHICH COULD BE TAKEN BY AN ADVERSARY. THE EVALUATION EFFORT IS DIVIDED INTO A COLLECTION OF TASKS OR MODULES WITH WELL-DEFINED INTERMODULE RELATIONSHIPS. THE METHOD CONTAINS ANALYSIS MODULES WHICH CALL UP AND USE PERFORMANCE DATA ON INDIVIDUAL SAFEGUARDS. VISA DETERMINES THE PROBABILITY THAT ADVERSARY ACTION SEQUENCES (AAS) ARE INTERRUPTED BEFORE COMPLETION BY DIVIDING EACH AAS INTO SEQUENTIAL SEGMENTS TO BE EVALUATED UNDER COVERT AND OVERT MODES OF ADVERSARY OPERATION. THE ANALYSIS OF A SINGLE CASE CAN ANSWER A QUESTION SUCH AS 'HOW VULNERABLE IS THE FACILITY TO SABOTAGE OF THE EXHAUST FILTER SYSTEM BY ONE INSIDER?' IN ORDER TO PERFORM A COMPLETE FACILITY ANALYSIS, ALL TARGETS FOR BOTH THEFT AND SABOTAGE MUST BE IDENTIFIED. FURTHER DISCUSSION CONCERNS THE PREPARATION AND ANALYSIS SECTIONS OF THE VISA METHOD. REFERENCES ARE PROVIDED. (TWK)