A processing department is an organizational unit where work is performed on a prod- uct and where materials, labor, or overhead costs are added to the product. For example, a Nalley’s potato chip factory might have three processing departments—one for preparing potatoes, one for cooking, and one for inspecting and packaging. A brick factory might have two processing departments—one for mixing and molding clay into brick form and one for firing the molded brick. Some products and services may go through a number of processing departments, while others may.