Function Modeling and Analysis and Trimming Method

This chapter will explore system analysis and find problems using functional analysis and trimming methods—design simplification strategy. Functional modeling and analysis of a system is the main part of Value Methodology. Value Methodology is a system created to prevent unnecessary costs during product/process design and to find and remove unnecessary costs during product manufacturing. A system’s functional model defines and describes the functions of each system part and a super-system element. It explains how the system works. Functional modeling analyzes interactions between elements. It helps to define any existing problem in the analyzed system. The trimming process simplifies and reduces the cost of the system while preserving its essential functionality and quality. The trimming process improves a system by cutting the most problematic components (high cost, introduces harmful functions) and redistributes their useful functions, among other components. The design variants that result from trimming will generate different problem statements, which, if solved, can lead to highly innovative solutions.