- Low Reliability refers to software having a failure probability
during a 1 hour mission of greater than 0.001.
- Moderate Reliability refers to software having a failure
probability during a 1 hour mission of between 0.001 and 0.0000001.
- Ultra Reliability refers to software having a failure probability
during a 1 hour mission of less than 0.0000001.
Curator and Responsible NASA Official:
Ricky W. Butler
last modified: 10 September 1998 (15:57:28)