This reflects the extent that a software product can be expected to perform
its intended functions satisfactorily. The rating can be determined from
the list below or from a list of Software
Development Activity Differences due to required reliability.
- Very Low: The effect of a software failure is simply
the inconvenience incumbent on the developers to fix the fault.
- Low: The effect of a software failure is a low level,
easily-recoverable loss to users.
- Nominal: The effect of a software failure is a
moderate loss to users, but a situation for which one can recover without
- High: The effect of a software failure can be a major
financial loss or a massive human inconvenience.
- Very High: The effect of a software failure can be the
loss of human life.
- Very High: No rating - defaults to Very High.