BRF (Best Replacement Factor) Analysis and Improvement
Abstract
The Best Replacement Factor (BRF) is used primarily in Coordinated Shipboard ALlowance List (COSAL) and load list requirements determination. Recently, many inventory problems including stock shortages, stock excesses, and churn have been blamed on the BRF. To identify what problems are associated with the current method used to compute the BRF, we took a multi-faceted approach. First, we discussed the two forecasting methods available under Resystemization and then analyzed the volatility and trend of the current BRF. Casualty Report (CASREP) items and problem equipments were included in the analysis. We then examined alternative methods to forecast the BRF and compared them with the current methods. The best alternative was selected based on its performance in terms of stability, accuracy with respect to bias and extremes, and the magnitude of errors. Performance was evaluated separately for items identified as readiness contributors. Test COSALs were built with the current BRFs and the proposed BRFs to evaluate the impact of the change. We recommend using the exponential probability distribution to adjust the Technical Replacement Factor (TRF) during the development period, after the development period, exponential smoothing with a data windsorizing system to handle extreme values.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 26, 1989
- Accession Number
- ADA217013
Entities
People
- Robert E. Maitland