|
|
|
|
|
|
|
|
|
| A
central computer serves the entire campus.
Any failure is |
||||||||
| serious. |
||||||||
| Step
1. Gather data on every failure |
||||||||
| • 10 years of data
in a simple data base |
||||||||
| • Every failure
analyzed: |
||||||||
| hardware |
||||||||
| software (default) |
||||||||
| environment (e.g., power, air
conditioning) |
||||||||
| human (e.g., operator error) |
||||||||
| 18 |