This Function Analysis Guide will give you a greater understanding of Function Analysis to the extent that it becomes second nature to those using the Value Methodology to improve their projects, products, and processes. Application of the techniques covered herein will result in better studies and, most importantly, better results.Lawrence D. Miles, the Father of Value Analysis, stated the customer wants a function. People want functions, not things. Function Analysis is considered the heart of the Value Methodology (VM), yet many people have difficulty applying its concepts and techniques to their projects, products, and processes. This document provides guidance on the process and application of function analysis, including Function Analysis System Technique (FAST) for practitioners and those who are preparing to become certified through SAVE International®.