Model the following process fragment. 

Once a wholesale order has been confirmed, the supplier transmits this order to the carrier for the preparation of the transportation quote. In order to prepare the quote, the carrier needs to compute the route plan (including all track points that need to be traversed during the travel) and estimate the trailer usage (e.g., whether it is a full track load, half track load or a single package). By contract, wholesale orders have to be dispatched within 4 days from the receipt of the order. This implies that transportation quotes have to be prepared within 48 h from the receipt of the order to remain within the terms of the contract.