Requirement completeness: Requirements are sufficient to distinguish the desired behavior of the software from that of any other undesired program that might… — Nancy Leveson Copy Share Image
What [software] must not do is not the inverse of what it must do. . — Nancy Leveson Copy Share Image
Software−related accidents are usually caused by flawed requirements. — Nancy Leveson Copy Share Image
Requirement completeness: Requirements are sufficient to distinguish the desired behavior of the software from that of any other undesired program that might be designed. . — Nancy Leveson Copy Share Image
Safety is an emergent property of systems, not a component property. — Nancy Leveson Copy Share Image
What [software] must not do is not the inverse of what it must do. . — Nancy Leveson Copy Share Image
Software−related accidents are usually caused by flawed requirements. — Nancy Leveson Copy Share Image
Reliability engineers often assume that reliability and safety are synonymous, but this assumption is true only in special cases. — Nancy Leveson Copy Share Image
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