4.2 Job descriptionAlready given "special characteristics" have to be taken over directly.Thereafter, the concept filter clarifies whether the concept is protected with regard to development or process.This protection must be proven and documented.If a "special feature" is defined or identified, the product or process characteristics must be determined with regard to the unambiguous fulfillment of the function with the parameters and the nominal values and the tolerance limits must be sensibly selected.If a robust design and / or a secured production concept is present, the internally determined "special feature" will not be pursued any further.Otherwise, a design change or a production concept change has to be considered.4.3 Methods of the construction1.1.1 Actions in the product development • Structural design, for example: (emergency operation, redundancies, display concepts)• Expert Team