STREAMLINED COSTING AND TARGETING OF PRODUCT FUNCTIONS IN VALUE ANALYSIS
Function analysis is a critical step in product redesign projects based on the Value Analysis methodology. The paper deals with how a product can be more readily and effectively described at the abstraction level of its functions, with special focus on costing and targeting tasks. In the calculation of function costs, it is shown that the complex reallocation of product costs to functions can be limited to a predefined subset of parts. Simulation and regression analysis are used to estimate subset size from simple indicators which are easily evaluated for any product. In the selection of target functions, a fuzzy-based procedure is proposed to point out the most appropriate redesign actions and to evaluate priorities among them.