1.
Function Analysis System Technique

2.
CONTENTS
What is FAST diagram ?
How to use a FAST diagram ?
An example FAST diagram

3.
FAST METHOD
It is a tool in reverse engineering
Used to define , analyze & understand
product FUNCTIONS
Used to display FUNCTIONS in a logical
sequence

4.
WHAT IS A FUNCTION ?
Function is an Active verb followed by a
Measurable noun
 e.g. produce torque , generate light
There are different types of functions

5.
TYPES OF FUNCTIONS
1. Higher Order Functions The societal reasons of “Why” a project is
being done . Listed to left of the left scope line on a FAST diagram
2. Basic Functions Describes the primary reason a project is being
done
3. All the Time Functions (also called “Required Secondary
Functions”) Any function that is required to meet codes, standards,
or other mandatory requirements on a project
4. Secondary Functions Those functions that if removed from the
project, then both the Basic and Secondary functions could still be
realized. Examples of where too much money is devoted to
secondary functions

6.
HOW TO ANALYZE FUNCTIONS ?

7.
LEGENDS

8.
LEGENDS

9.
LEGENDS

10.
CASE STUDY

11.
FAST MODEL FOR OHP

12.
REFERENCE
• Product design by Kevin otto & Kristin
wood
• Internet (SAVE)