8. Mistakes to avoid
Give yourself too many constraints: in this operation, the user's needs are translated into figures, measurements and tests; be realistic and translate only what the user wants.
Think that the user can't measure anything: on the contrary, the user has a very good perception of what he wants and can therefore verify what you may be claiming in your sales pitch. Never display arguments that you are not sure will hold up over the product's lifetime.
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Regulatory references
AFNOR NF X 50-100 November 2011: Value Management – Functional analysis, fundamental characteristics – Functional analysis: functional analysis of needs (external) and technical/product functional analysis (internal) – Requirements for deliverables and implementation procedures
AFNOR NF X 50-151 September 2007: Value Management – Functional expression of need...
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The " Sciences de l’Ingénieur " website provides comprehensive examples of functional analysis. In the "Resources" tab, type in the keyword "functional analysis".
Acronyms and abbreviations
CdCF: functional specifications
AF: functional analysis
AV: value analysis
FAST: Function Analysis System Technic
SADT: Structured Analysis and Design Technic
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