We have assumed that all UI is done. User has provided following details for order

User Details Username Email id Phone No

Order Details

Item List Payment Type NOTE: If Subscription : date for each month for the subscription

Order Date Time

Order Total Amount

Tax Amount

Shipment Details Shipping To

Shipping Address

Shipping Date

Order has Item List.

Order has Shipment.

Order Payment.

Item List has Items.

TODO :

Need to create item select page and select them on check out page.

pass order details to from checkout page to OrderProcess class

setup code to save data to database in all model class

call generate label function when needed