The prototype ensures the business that its product is functioning properly, and all the necessary arrangements are made to enhance the product as much as possible.[15] After the prototype has been devised, the business can now use test marketing where the business introduces a product to a small group of individuals to give the company insight into the effectiveness of the product from the views of their potential customers.[16] Feasibility study: The business will now look at the legal and financial restrictions of launching the product into the market. This is where the business will create sales forecasts, establish the price of the product, the overall costs of production and profitability estimates. The business also has to consider legal aspects in terms of safety and Intellectual Property Rights (IPR).[17]