che - Com té ▁in ▁eastern ▁France . ▁ ▁Population ▁ ▁See ▁also ▁▁ ▁Comm unes ▁of ▁the ▁J ura ▁department ▁ ▁References ▁▁ ▁IN SEE ▁statistics ▁ ▁Category : Comm unes ▁of ▁J ura ▁( de partment ) <0x0A> </s> ▁In ▁manufact uring ▁and ▁design , ▁a ▁mock up , ▁or ▁mock - up , ▁is ▁a ▁scale ▁or ▁full - size ▁model ▁ ▁of ▁a ▁design ▁or ▁device , ▁used ▁for ▁teaching , ▁demonstr ation , ▁design ▁evaluation , ▁promotion , ▁and ▁other ▁purposes . ▁A ▁mock up ▁is ▁a ▁prototype ▁if ▁it ▁provides ▁at ▁least ▁part ▁of ▁the ▁functionality ▁of ▁a ▁system ▁and ▁enables ▁testing ▁of ▁a ▁design . ▁Mock - ups ▁are ▁used ▁by ▁design ers ▁mainly ▁to ▁ac quire ▁feedback ▁from ▁users . ▁Mock - ups ▁address ▁the ▁idea ▁captured ▁in ▁a ▁popular ▁engineering ▁one - lin er : ▁You ▁can ▁fix ▁it ▁now ▁on ▁the ▁draft ing ▁board ▁with ▁an ▁er aser ▁or ▁you ▁can ▁fix ▁it ▁later ▁on ▁the ▁construction ▁site ▁with ▁a ▁s ledge ▁ham mer . ▁ ▁App lications ▁ ▁Mock ups ▁are ▁used ▁as ▁design ▁tools ▁virt ually ▁everywhere ▁a ▁new ▁product ▁is ▁designed . ▁ ▁Mock ups ▁are ▁used ▁in ▁the ▁autom ot ive ▁device ▁industry ▁as ▁part ▁of ▁the ▁product ▁development ▁process , ▁where ▁dimensions , ▁overall ▁impression , ▁and ▁shapes ▁are ▁tested ▁in ▁a ▁wind ▁tunnel ▁experiment . ▁They ▁can ▁also ▁be ▁used ▁to ▁test ▁consumer ▁reaction . ▁ ▁Systems ▁engineering ▁ ▁Mock ups , ▁wire frames ▁and ▁pro tot