If you want your app to be used by professionals, it should respond to a clear need and fulfil a function.
The main purpose of such interlinked but independent systems is to fulfil a function that cannot be provided by sub-systems on their own.
Protective structures are designed explicitly to fulfil a function that in many cases is an extreme event; therefore, an explicit design has to properly and precisely account for the nature of the solicitation imposed by the extreme event.
Nevertheless, in many cases despite extensive geometric data of the manufactured, real workpiece it is not possible to make a clear statement about the functional ability, because conventional concepts of tolerancing are solely geometry-oriented and standardized surface parameters are not sufficient or even missing completely for characterizing the degree of ability to fulfil a function.
The multihaem cytochromes MtrF, OmcA and OmcB may fulfil a function as terminal dye reductase (Brigé et al. 2008).
A non-classical type of arabinogalactan protein is suggested to fulfil a function of intercellular communicator, known as hypothetical xylogen [ 44].
Human behaviour and cultural values, however senseless or destructive they may appear from the personal and cultural standpoints of others, have meaning and fulfil a function for those who practice them.
The primate or rodent cathelicidin must function equivalently to the plethora of cathelicidins in the platypus or ruminants; analogously, the one or two CD163c-α molecules in non-artiodactyl eutherian mammals may fulfil a function like that of WC1, in regulating the γδ T cell response.
It has been proposed that the Hel308 helicase, displaying homology with the metazoan PolQ/Mus308, may fulfil an function analogous to that of RecQ [ 77, 78].
It is thus conceivable that this protein fulfils a similar function to the Cfd1 Nbp35 complex, which performs a scaffold role in cytosolic and nuclear iron-sulfur protein assembly [ 32], or to the mitochondrial Ind1 involved in Fe/S cluster incorporation into respiratory complex I [ 28].
