System safety analysis process and instruction
First Claim
1. A safety analysis system comprising:
- a safety program definition phase in which a safety program is defined;
a detailed safety analysis phase to analyze the safety of the system;
a safety disposition phase to dispose the safety program as has been analyzed; and
, a sustained system safety engineering phase to sustain the safety program as has been analyzed and disposed.
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Accused Products
Abstract
A safety analysis process and system are disclosed. The safety analysis evolution includes four phases: safety program definition, detailed safety analysis, safety disposition, and sustained safety engineering. In the safety program definition phase, a safety program is thoroughly defined through the generation of system safety plans and the establishment of the safety team. In the detailed safety analysis phase, the system is thoroughly analyzed using a systematic analysis approach while all engineering data is captured in the unified hazard tracking database. In the safety disposition phase, the safety posture is formally disclosed to safety review officials and operational safety precepts are generated. In the sustained safety engineering phase, the safety efforts are maintained, including maintaining the hazard tracking database and assessing the safety impact of reported problems, proposed engineering changes, maintenance changes, and incident reports.
22 Citations
20 Claims
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1. A safety analysis system comprising:
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a safety program definition phase in which a safety program is defined;
a detailed safety analysis phase to analyze the safety of the system;
a safety disposition phase to dispose the safety program as has been analyzed; and
,a sustained system safety engineering phase to sustain the safety program as has been analyzed and disposed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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defining a safety program, including a system safety program plan and a preliminary hazard lists based on the system safety program plan;
analyzing the safety program using analysis methods including a preliminary hazard analysis, a system hazard analysis, a subsystem hazard analysis, and an operating and support hazard analysis;
establishing and maintaining a system hazard tracking database based at least in part on the preliminary hazards list, the system hazard tracking database comprising a plurality of records corresponding to defined system safety critical events, system safety critical functions also defined;
dispositioning safety of the system being analyzed, including maintaining the system hazard tracking database, generating operational safety precepts and safety assessment reports resulting from analyzing the system hazard tracking database and presenting the analysis results to various safety review boards; and
,sustaining the safety engineering activities, including maintaining the system hazard tracking database, assessing of a safety impact of software trouble reports, performing a risk assessment based on the assessing of the safety impact and the system safety critical events, and updating the system hazard tracking database based on the risk assessment. - View Dependent Claims (20)
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Specification