1. Diagram the link between the various functions
1.1 Level 0: the need
The user's primary function or need
SCROLL TO TOP1.2 Level 1: Service functions
The user's complementary needs have been broken down into service functions (for each life cycle phase selected). Each service function is an action. You've expressed these functions with a verb and a complement. Now represent each function by a rectangle or box.
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Diagram the link between the various functions
Choosing a graphical representation method
Bibliography
Also in our database
Regulatory references
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...
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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".
Acronyms and abbreviations
AF: functional analysis
FAST: Function Analysis System Technic
SADT: Structured Analysis and Design Technic
APTE ® : the APTE method ® is a registered trademark of APTE.
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