SRC Forum - Message Replies
Forum: Reliability & Maintainability Questions and Answers
Topic: Reliability & Maintainability Questions and Answers
Topic Posted by: Reliability & Maintainability Forum
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998
Posted by: N.Laxman
Date posted: Mon Jan 27 3:28:20 US/Eastern 2003
Subject: Reliability Index
How to arrive at a reliability index based on Field Complaint data ???
I have the basic data's as below.
1. Field complaint data with respect to manufacturing period.
2. Failure modewise data's
Subject: Field reliability
Reply Posted by: Larry George
Organization: Problem Solving Tools
Date Posted: Mon Jan 27 16:01:10 US/Eastern 2003
To estimate reliability, you also need production data too, how many units were shipped per manufacturing period. Without some production information, all you can do is trend complaints.
When you get installed base information, enter production and complaints into http://www.fieldreliability.com/Table.htm. Send it. I will send back nonparametric estimates of field reliability and failure rate functions. Enter ships and complaints by failure mode, and I will send back estimates by failure mode.