The interdisciplinary approach and means necessary to establish successful “systems [1] … or

The art of designing and optimizing systems [2]…

The term “interdisciplinary approach”, used in the INCOSE definition of Systems Engineering, expresses that system products can only be produced by interdisciplinary teams and that the products of single disciplines or professions attempted to substitute system engineers will not be satisfactory.

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1 : This is the definition accepted by Incose – International Council Of Systems Engineering, in its 1996 winter workshop.
2 : According to Harald Yndestad definition.
3 : This is the reason why in public the advantage of a position is being measured by its independency of other units, by its autonomy.