1. Expressing functions
The functions of a solution are the expected performance and the constraints it must meet. Numerous ways of expressing the functions of the solution under study have been developed, with varying degrees of sophistication:
ask users to answer the question "What's it for?
analyze documents and sales pitches ;
observe usage processes, by various users, and describe "what the object does";
collect dissatisfaction through a quality organization or after-sales service;
transform technical specifications into functional specifications.
You can then carry out a systematic and exhaustive exploration of functions by conducting a lifecycle analysis of the solution under study:...
The Ultimate Scientific and Technical Reference
This article is included in
Management and innovation engineering
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Expressing functions
Organizing functions
Bibliography
Expressing needs (applications of the functional approach) , AFAV, Édition AFNOR Gestion, 1989/1998
Desmesnards P. H., Réussir l'analyse des besoins , Eyrolles – Éditions d'Organisation, 2007
ToolWebsite
www.afav.eu AFAV association website – Value and management, for the development of Value methods
AFNOR standards
NF EN 1325: value analysis vocabulary
NF X50-100: functional analysis – fundamental characteristics
FD X50-101: general tools
NF X50-151: functional expression of need and CDCF
Acronym
CDCF: functional specifications
The Ultimate Scientific and Technical Reference
