Supply Chain Glossary
/ Letter D
Glossary — Letter D
8 supply chain, inventory, and fulfillment terms starting with D. Plain-English definitions for e-commerce merchants.
DDP (Delivered Duty Paid)
A shipping term where the seller is responsible for all costs and risks including import duties and taxes until the goods are delivered to the buyer's destinati…
Days of Inventory Outstanding (DIO)
A metric that measures how many days on average a company holds inventory before selling it.
Days of Supply
Days of Supply: a key concept in supply chain and ecommerce fulfillment for Shopify brands.
Dead Stock
Inventory that has not sold for a prolonged period and is unlikely to sell in the future, tying up capital and warehouse space.
Demand Forecasting
Demand Forecasting: a key concept in supply chain and ecommerce fulfillment for Shopify brands.
Demand Sensing
A short-range forecasting technique that uses real-time sales signals, POS data, and market inputs to refine near-term demand predictions.
Demand Variability
The degree to which customer demand fluctuates over time, which directly impacts the level of safety stock and forecast accuracy required.
Dropshipping
A fulfillment model where the retailer does not hold physical inventory; instead, orders are shipped directly from the supplier to the customer.
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