As is
One way to use the model contract is to use it "as is". The trader simply fills in the spaces provided for specifying the contract details: buyer/seller, description of goods, price, payment method, delivery and dispute resolution (among others).
As reference
Another option is to use the model contract as a source of inspiration or reference document when drafting the firm's standard forms or general conditions.
As a negotiating tool
Yet another option is to use the model contract as a negotiating tool.
When one party presents a clause that is difficult or objectionable to the other, reference to the more balanced approach in the model contract may help the parties to reach a compromise.