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Implement Function Analysis :




Function Analysis :
•    Function Analysis is an analytical tool that identifies Functions, their characteristics, and the cost of the System and the Supersystem Components
•    Subject and Object are both Components in, or interact with, the Engineering System
•    A Function is an action between a Subject and an Object, in which the Subject acts upon and modifies or maintains a parameter of the Object
•    A parameter describes some inherent property of a Component

Main Function: Delivers the system product
•    The Product is what the Engineering System was designed to do or produce and the one that people pay for
•    Most Engineering Systems contain only one Product


Example




What is Function Model ?
The main goal of Function Analysis is to identify specific disadvantages of an Object - namely, harmful Functions as well as useful Functions performed insufficiently, and those that are performed excessively

Definition of Interactions – Useful Functions
Useful Function is defined as the product that delivers the purpose or functional requirement to its users as designed

Definition of Interactions – Harmful Functions

A harmful function is defined as a function that worsens the parameters of the object of the function

1. Equal or Normal
If the actual parameter value equal the required or designed value, the related Function is defined as NORMAL

2. Insufficient
If the actual parameter value is less or falls below the required or designed value, the related Function is defined as INSUFFICIENT

3. Excessive
If the actual parameter value is more or falls above the required value, the Function is defined as EXCESSIVE

4. Harmful
If the actual parameter value generate damaging or undesirable effects on their objects, the related Function is defined as HARMFUL

Example: Interaction between Robotic arm and Plastic Bottle

1.       Normal Useful Function: Robotic arm holds Plastic bottle
2.       Insufficient Useful Function: Robotic arm drops Plastic bottle
3.       Excessive Useful Function: Robotic arm crushes Plastic bottle
4.       Harmful Function: Robotic arm scratches Plastic bottle
                              :  Robotic arm stained Plastic bottle with grease

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