ABSTRACT: This handbook discusses several approaches for conducting a Field Reliability Performance Study (FRPS). The major objectives of an FRPS are to analyze a product's performance in the field and to identify corrective action items that the manufacturer or user should consider to improve the product's quality.

The handbook is primarily intended for use by Local Exchange Carriers (LECs) or other service providers who wish to run their own studies. However, many of the principles apply to any FRPS administered by Telcordia or telecommunications equipment suppliers for assessing the in-service performance of products/systems.

SR-NWT-000821 replaced IP-10400 and SR-TSY-000821.