Overview
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Delphine Mathilde COSME: Technical consultant, expert in materials assembly (plastics and metallurgy)
INTRODUCTION
You've set up your working group, carried out the investigative work and defined the aim and challenges of functional analysis (FA). The user's needs have been understood and recorded in the specifications (see Using functional analysis to create a new product: preliminary work and implementation stages
This sheet allows you to find all the functions, recognize their typology, and check their validity, but :
What kind of need are we talking about?
What functions are we talking about?
How do you count them all?
This sheet will help you :
understand the vocabulary and mindset of functional analysis (FA) ;
recognize the different functions related to the user's needs ;
use standardized names and diagrams ;
understand the points of view that allow us to find all the functions.
This will make it easier for you to carry out your own functional analysis (FA).
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Functional analysis: expressing needs in terms of functions and methods for finding functions
Express the user's need in terms of function = level 0
Bibliography
Also in our database
Regulations
AFNOR NF X 50-100 November 2011: Value Management – Functional analysis, fundamental characteristics – Functional analysis: functional analysis of the need (or external) and technical/product functional analysis (or internal) – Requirements for deliverables and implementation procedures
AFNOR NF X 50-151 September 2007: Value Management – Functional expression of need...
Websites
The " Sciences de l’Ingénieur " website provides comprehensive examples of functional analysis. This link will take you directly to the list of available examples. In the "Resources" tab, type in the keyword "Functional analysis".
INPI (the Soleau envelope in practice) is available...
Acronyms and abbreviations
AF: functional analysis
AFE: external functional analysis
AFI: internal functional analysis
FAST: Function Analysis System Technic
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