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	Modeller för säkerhetslager och påfyllningspunkter	ABC-analys: Lagerklassificering baserad på årligt användningsvärde
Ämnesområde	Operationsanalys	Operationsanalys
Familj	Regression model	Process / pipeline
Ursprungsår	1998	1998
Upphovsperson	Silver, Pyke & Peterson	Pareto principle; Silver, Pyke & Peterson
Typ	Stochastic inventory control model	Inventory segmentation technique
Ursprungskälla	Silver, E. A., Pyke, D. F., & Peterson, R. (1998). Inventory Management and Production Planning and Scheduling (3rd ed.). Wiley. ISBN: 978-0-471-11947-0	Silver, E. A., Pyke, D. F., & Peterson, R. (1998). Inventory Management and Production Planning and Scheduling (3rd ed.). Wiley. ISBN: 978-0-471-11947-0
Alias	Buffer Stock, Reserve Stock, Reorder-Point Model, Emniyet Stoğu	Pareto Inventory Classification, 80-20 Inventory Rule, ABC Classification, ABC Stok Analizi
Närliggande	3	2
Sammanfattning	Safety stock is an additional quantity of inventory held beyond expected demand during a replenishment lead time, designed to protect against stockouts caused by demand or supply uncertainty. Reorder-point models formalize this buffer by setting a trigger inventory level at which a new order is placed. Systematically developed within the stochastic inventory-control framework by Silver, Pyke, and Peterson (1998), the approach translates a desired customer-service level into a precise buffer quantity using the statistics of demand and lead-time variability.	ABC Analysis is a demand-value segmentation technique that divides inventory items into three classes — A, B, and C — based on their annual usage value (unit cost multiplied by annual demand). Rooted in the Pareto principle and codified for inventory management by Silver, Pyke, and Peterson (1998), it guides managers to concentrate control resources on the small fraction of items that drive the vast majority of total inventory spend.