Examine the factors that determine the availability of a system.

Measuring and analyzing software defects is critical for software and system development. Describe the relationship between defect detection and rolling-wave adjustments. Determine the measures that may be performed to minimize the activities associated with rolling-wave planning.
Examine the factors that determine the availability of a system. Compare these factors and describe how they are interrelated. Suggest the tests that may be performed to determine these factors.