Order
The order object contains commercial information about a customer, fares used for pricing and payment transactions. Typically an order generates one or more shipments that contains the operative information used to execute the order.
Shipment
Shipments are atomic objects that describe the transport of a load from a pickup point to a dropoff point. Shipments cannot be assigned to carriers, drivers or vehicles directly, but instead need to be routed on a tour which can be assigned and executed.
Tour
Tours are a key object in Orbit that connects loads, stops, carriers and drivers. Tours can be A-B trips or have any number of stops where loads are unloaded or loaded. Tours can be assigned to carriers, drivers and vehicles and are executed operationally.