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Software for safety-critical systems must deal with the hazards identified by safety analysis in order to make the system safe, risk-free and fail-safe. Certain faults in critical systems can result in catastrophic consequences such as death, injury or environmental harm. The focus of this paper is an approach to software safety analysis based on a combination of two existing fault removal techniques. A comprehensive software safety analysis involving a combination of Failure Modes and Effects Analysis (FMEA) and Fault Tree Analysis (FTA) is conducted on the software functions of the critical system to identify potentially hazardous software faults. A prototype safety-critical system -Railroad Crossing Control System (RCCS), incorporating a microcontroller and software to operate the train on a track circuit is described.
Ben Swarup Medikonda. 1970. \u201cFMEA and Fault Tree based Software Safety Analysis of a Railroad Crossing Critical System\u201d. Unknown Journal GJCST Volume 11 (GJCST Volume 11 Issue 8): .
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Total Score: 106
Country: India
Subject: Uncategorized
Authors: Dr. Ben Swarup Medikonda P. Seetha Ramaiah Anu A. Gokhale (PhD/Dr. count: 1)
View Count (all-time): 133
Total Views (Real + Logic): 20683
Total Downloads (simulated): 10906
Publish Date: 1970 01, Thu
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Software for safety-critical systems must deal with the hazards identified by safety analysis in order to make the system safe, risk-free and fail-safe. Certain faults in critical systems can result in catastrophic consequences such as death, injury or environmental harm. The focus of this paper is an approach to software safety analysis based on a combination of two existing fault removal techniques. A comprehensive software safety analysis involving a combination of Failure Modes and Effects Analysis (FMEA) and Fault Tree Analysis (FTA) is conducted on the software functions of the critical system to identify potentially hazardous software faults. A prototype safety-critical system -Railroad Crossing Control System (RCCS), incorporating a microcontroller and software to operate the train on a track circuit is described.
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