8. Mistakes to avoid
Naming functions with our memory and in the present tense: our way of thinking is always a function of our scientific culture, our personal and professional experiences; to find the terms qualifying the functions, we need to make a real effort.
Since the aim is to find innovative solutions, the working group should be free to imagine all conceivable technological solutions through the correct naming of a function.
For example, for the "desk lamp", if we're talking about energy and "lighting a spot", then you can make an inventory of the energies available. Each energy corresponds to a different technical function (TF) corresponding to the service function (FS) "lighting a spot".
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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...
Website
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
IPR: predictive risk index
AF: functional analysis
EME: external environment element
LED: light-emitting diode lamp
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