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  5. How do you check that you've found all the functions?

Practical sheet | REF: FIC0616 V1

Functional analysis: expressing needs in terms of functions and methods for finding functions

Author: Delphine Mathilde COSME

Publication date: February 10, 2012 | Lire en français

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    5. How do you check that you've found all the functions?

    The group's job is to list all the ideas without judging them. The aim is to find all the service functions without forgetting any, to distinguish the main functions, the constraint functions, and then the corresponding technical functions.

    In this quest, don't reject any suggestion; it will become null and void in the next stage of characterization and prioritization if the :

    • is badly formulated (the vocabulary is wrong);

    • is not to be taken into account (is not a need expressed by the user);

    • is included in another function (a detail of a more global function) ;

    • is not in the life cycle phase under study (maintain in state is not a function of the "use" life cycle phase).

    Here are...

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