مقایسهٔ روش‌ها

	مدل‌های موجودی ایمنی و نقطه سفارش مجدد	تحلیل ABC: طبقه‌بندی موجودی بر اساس ارزش مصرف سالانه
حوزه	پژوهش عملیات	پژوهش عملیات
خانواده	Regression model	Process / pipeline
سال پیدایش	1998	1998
پدیدآور	Silver, Pyke & Peterson	Pareto principle; Silver, Pyke & Peterson
نوع	Stochastic inventory control model	Inventory segmentation technique
منبع بنیادین	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
نام‌های دیگر	Buffer Stock, Reserve Stock, Reorder-Point Model, Emniyet Stoğu	Pareto Inventory Classification, 80-20 Inventory Rule, ABC Classification, ABC Stok Analizi
مرتبط	3	2
خلاصه	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.