
USE CASE	    Book New Cargo [user-goal]
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Cargo Owner wants to book a cargo shipment from A to B with an arrival deadline.


Primary actor.. Cargo Owner (or Booking Clerk on behalf of Cargo Owner)
Scope.......... Booking System in shipping application
Preconditions.. None
Trigger........ Cargo Owner wants to book a new cargo shipment.


Main Success Scenario
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1. Cargo Owner provides origin/destination, arrival deadline and optionally a tracking id.
2. Booking System creates route specification.
3. Booking System derives initial delivery data.
4. Booking System creates cargo.
5. Booking System requests Cargo Owner to <route cargo>.


Deviations
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2a. Origin location equals destination location:
    1. Exit.

2b. Arrival deadline is in the past or Today:
    1. Exit.

4a. Supplied tracking id doesn't match pattern:
    1. Exit.

4b. Supplied tracking id is not unique:
    1. Exit.


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Success guarantees:
    Booking is saved and awaits routing by Cargo Owner

Minimal guarantees:
    Data entered is logged.

Stakeholders/Interests:
    Cargo Owner - wants successful booking of shipment.

    Shipper:
    Handling dep - wants correct data and overbooking of vessels to maximize profit.
    Sales dep - wants Cargo Owner satisfaction.
    Financial dep - wants payment settlement with Cargo Owner.