Safety stock amount calculation method, safety stock amount calculation device, reorder point calculation method, reorder point calculation device, and order quantity calculation method
US8140396B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2011 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Mar 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q30/0633
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A safety stock amount calculation method includes calculating a probability Pb that a delivery time for a certain commodity required by a customer is shorter than its lead time L, calculating an average value LL of a difference between the lead time L and the customer's required delivery time when the lead time L exceeds the customer's required delivery time, correcting an inventory adjustment period N by using the average value LL, and calculating a safety stock amount SS by the equations SS=PB×k×(√N×F)×σ, wherein σ is a standard deviation of demand for the commodity, N is a corrected inventory adjustment period, Pb is a probability, F is a shipment frequency, and k is a safety coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.