Advanced Dynamic Fault Tree Analysis Techniques for Complex Systems Dependability Analysis

Award Information
Agency:
National Science Foundation
Amount:
$64,979.00
Program:
SBIR
Contract:
9460027
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
N/A
Award Year:
1995
Phase:
Phase I
Agency Tracking Number:
29808
Solicitation Topic Code:
N/A
Small Business Information
Quality Research Associates, Inc.
296 Englenook Drive, DeBary, FL, 32713
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 Laura L. Pullum, DSc
 President & CEO
 (386) 753-1877
 lpullum@QRAinc.com
Business Contact
 Laura L. Pullum, DSc
Title: President & CEO
Phone: (386) 753-1877
Email: lpullum@QRAinc.com
Research Institution
N/A
Abstract
Through this Phase I Small Business Innovation Research (SBIR) effort, Quality Research Associates, Inc. (QRA) developed and determined the feasibility of an enhanced dynamic fault tree analysis methodology for safety and risk assessment of critical computer-based systems (CBS). CBS are being used in many critical applications where failures can lead to loss of life or severe economic or environmental consequences. These systems must be designed to high standards for dependability. One of the means to do dependability assessment is fault tree analysis. Currently available fault tree analysis tools are not adequate or effective when the system to be evaluated is large, complex, dynamic, or includes non-hardware influences.

Feasibility of the methodology was determined by using the methodology to evaluate three diverse and complex systems. This new methodology will help users more effectively model and analyze critical system dependability, yielding the potential for more dependable and safe systems. This new methodology and resulting tool can be applied to many types of CBS.

Features of the methodology (which we call SHADETree(TM)) include the ability to perform system dependability evaluation, evaluate large systems, evaluate dynamic systems, provide ease of use, include all significant influencing factors in the evaluation, and perform supporting and complementary analyses.

[SHADETree is a trademark of Quality Research Associates, Inc.]

* information listed above is at the time of submission.

Agency Micro-sites

US Flag An Official Website of the United States Government