Guidance for Addressing Software Common cause Failure In High Safety-Significant Safety Related Digital I&c systems


Software quality depends on complete and correct requirements, design, review, implementation



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ML20245E561
1.
Software quality depends on complete and correct requirements, design, review, implementation,
and testing
a.
Design quality depends on complete and correct requirements
Requirements quality for safety-related software should meet the following applicable regulatory requirements in the following

IEEE 603-1991 or IEEE 279 -1971 as incorporated by reference in 10 CFR ah)

10 CFR 50.54(jj) and 10 CFR i)

10 CFR Part 50, Appendix A General Design Criteria (GDC)”

GDC 1, Quality Standards and Records

GDC 2, Design Basis for Protection Against Natural Phenomena

GDC 4, Environmental and Dynamic Effects Design Basis

GDC 13, Instrumentation and Control

GDC 19, Control Room

GDC 20, Protection System Functions

GDC 21, Protection System Reliability and Testability”

GDC 22, Protective System Independence

GDC 23, Protective System Failure Modes

GDC 24, Separation of Protection and Control

GDC 25, Protection System Requirements for Reactivity Control Malfunctions

GDC 28, Reactivity Limits

10 CFR Part 50, Appendix B Quality Assurance

Criterion III, Design Control

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