What is the difference between process costing and operation costing?

Process costing and operational costing systems are used in accounting, usually in relation to the manufacturing sector. Both refer to the costs of production, but they differ in terms of methodology and application. Process costing is used in industries where the products are all basically the same, such as bricks or cement. Operational costing, on the other hand, is used in industries where the products are similar but may have some variation in terms parts or the quality of materials.