生命週期成本 (life cycle costing, LCC) 亦有翻譯為壽期成本,又稱為總成本會計或總擁有成本 (total cost of ownership)。
Life cycle costing is the process of economic analysis to assess the total cost of acquisition, ownership and disposal of a product. (ref. IEC 60300-3-3:2005, Introduction)
Life cycle costing: process of economic analysis to assess the life cycle cost of a product over its life cycle or a portion thereof. (ref. IEC 60300-3-3:2005, 3.2)