Once you have received your customer's down payment, you begin processing the project. If the construction department has released the bill of materials (BOM), you assign the components on the BOM for the turbine to the network activities of the project.

You explode the turbine assembly BOMs using material requirements planning (MRP). You order some of the turbine components from a vendor, and produce the rest in-house.

You confirm each activity, and once a certain milestone has been reached you bill a partial invoice.

The following shows each step in order processing: