The main goal of every profitable business is to increase its productivity and efficiency. It is important to increase the production, the revenue, the profit and the expenditure decreasing, but the highest result with the smallest investment is the efficiency. Nowadays, in a global economy characterized by growing competition, even market leaders struggle to achieve target growth rates through innovation. In the accounting the functional classification is the cost classification required for external reporting. The cost can be product and period cost by preparing external financial statement. Period costs are taken directly to the income statement as expenses in the period in which they are incurred or accrued. Product costs are associated with the manufacture of goods or the provision of services. We can classify costs different point of view and one of this view can be the function. What the function is and how we can identify, classify and organize the functions. I tried to compare the accounting costs and the function costs. Knowing a product's functions and the cost to produce the functions is imperative to meeting the needs and demands of the customer. A function in Value Methodology is defined as "that which a project, product, or process must do to make it work and meet the customer's needs." The main purpose or objective of function analysis is to identify the greatest opportunity for value improvement. The value management significantly helps companies to recognize hidden reserves for competitiveness and sustainable growth in performance, efficiency, profitability. The companies in the competitive environment can generate significant advantages by using value methodology to identify breakthrough points in development, management, innovation and knowledge capital. FAST (Function Analysis System Technique) is a powerful, structured tool used to identify and analyze functions with intuitive logic to stimulate creative and innovative thinking. The primary objective is to improve value of functions for a given project, product, or process.
