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



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ML20245E561
10.9
System Integration Quality
10.9.1
Goals
The goals for I&C system integration and test quality areas follows

Application software and system hardware are combined in a mutually compatible manner

System integration is complete and correct with respect to design specifications

System integration is repeatable

The integrated system configuration is precisely defined
10.9.2
Associated First Principles of Protection Against Software CCF

First Principle 6.1 - Software quality depends on complete and correct requirements, design and implementation

First Principle 6.2 - Concurrent triggering conditions are required to activate a latent software defect

First Principle 6.3 - The effects of a software CCF can be reduced by design

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