'How to select Severity for a diagnostic fault?

When creating a new diagnostic fault, how should we select Severity level? And what are difference between different level?

enum Severity {
  UNKNOWN = 0;
  INFO = 1;
  WARNING = 2;
  ERROR = 3;
}
diagnostics


Solution 1:[1]

ERROR: Error should be used when a fault condition directly affects the ability of component to meet its design requirements. This typically means the fault also has 'triggers_nogo=true' or some other direct constraint reaction or serves as a direct input to a Fault Aggregator that has a direct constraint reaction.

WARNING: Warning should be used when a fault condition indicates a degraded performance that still meets its design requirements.

INFO: Info faults can be used whenever a condition is present that is of particular interest but does not represent any noticeable degraded performance of the component.

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Solution Source
Solution 1 Darrin Willis

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