Activity-based costing (ABC) is a development in product costing that has received much attention in recent years, and it focuses on the activities performed in producing a product. In ABC, the cost of a product is equal to the sum of the costs of all activities performed to manufacture it. ABC recognizes more than a single basis of allocating activity costs to products is needed in order for cost data to be meaningful and accurate. In selecting the appropriate basis, ABC seeks to identify the cost drivers that measure the activities performed on the product. Examples of activities and possible cost drivers are shown below.