An OMS (or Order Management System) is a platform or system to manage and track sales, orders, inventory and fulfillment from all sales channels. It automates and streamlines all the processes involved from when an order is placed through to delivery and returns.
A Distributed Order Management (DOM) System also includes a single, global view of real-time inventory and inventory locations. This additional layer of intelligence allows retailers to truly optimize their inventory allocation, fulfillment and distribution. In its most basic form, the DOM can fulfil a customer order from any location, based on predefined rules such as product availability, customer location and business priorities (fastest shipping, lowest shipping cost, etc.).