Fractional Failures Analysis

Fractional Failure Analysis is added in V10. Fractional failure analysis addresses the situation where an analysis

• Failure frequency (count) can now be entered as a fraction

Purpose

• It similar in concept to the repair effectiveness used in RGA.
• For example, if Corrective Action (CA) is thought to be 80% effective (with strong engineering verification data), then subsequent analysis of the same data set may be done to factor in the CA by adjusting the failure count. In this case the failure count would be set to 0.2 (20%).

User Consideration, Implications

• No Impact.
• Optional use.
• All analyses/options remain as they were in prior versions weith the exception that no error is generated when fractional numbers are used in the count (number in group) column. Instead the fractional values are now accepted and used in the calculations.

Basis, Impact & Discussion

Basis for Modification	To be used in the DFR planner.
Impact on V8/V9 Users	New functionality no impact on existing
Discussion	Comment on this feature, or discuss it in the Synthesis Discussion area of our Discussion Forums.
These pages are not intended to replace, or be used in-lieu of the official software documentation. They are working/developments notes intended to facilitate communication between the user community and the development team. Features and specifications listed here are for discussion purposes and their final implementation in may be different than the specifications presented here.