Short note on Reliability Validation.

Reliability Validation 

- Reliability validation involves exercising the program to assess whether or not it has reached the required level of reliability.

- This cannot normally be included as part of a normal defect testing process because data for defect testing is (usually) atypical of actual usage data. 

- Reliability measurement, therefore, requires a specially designed data set that replicates the pattern of inputs (the operational profile) to be processed by the system.

- Reliability validation is the process of measuring the reliability of a system. To validate that the system meets these requirements, we have to measure the reliability of the system as seen by typical system user.

Reliability  Validation Activities 

• Establish the operational profile for the system.
• Construct test data reflecting the operational profile.
• Test the system and observe the number of failures and the times of these failures.
• Compute the reliability after a statistically significant number of failures have been observed.