Fielded Systems

The previous chapters of this on-line reference presented analysis methods for data obtained during developmental testing. However, data from systems in the field can also be analyzed in RGA. This type of data is called fielded systems data and is analogous to warranty data. Systems can be categorized into two basic types: one-time or nonrepairable systems and reusable or repairable systems. In the latter case, under continuous operation, the system is repaired, but not replaced after each failure. For example, if a water pump in a vehicle fails, the water pump is replaced and the vehicle is repaired.

Two types of analysis are presented in this section of the on-line reference. The first is repairable systems analysis where the reliability of a system can be tracked and quantified based on data from multiple systems in the field. The second is fleet analysis where data from multiple systems in the field can be collected, analyzed and reliability metrics for the fleet can be quantified. Most importantly, fleet analysis allows you to investigate the effects of reliability improvements using the Crow Extended model.

This chapter includes the following sections:

Go to weibull.com
Go to ReliaSoft.com