▁allowed ▁objective ▁quant ified ▁measurements ▁of ▁sens ory ▁information ▁to ▁be ▁acquired , ▁quant ified ▁and ▁communic ated ▁leading ▁to ▁improved ▁design ▁communication , ▁translation ▁from ▁prototype ▁to ▁production , ▁and ▁quality ▁ass urance . ▁S ens ory ▁areas ▁that ▁have ▁been ▁object ively ▁quant ified ▁include ▁vision , ▁touch , ▁and ▁sm ell . ▁ ▁V ision ▁In ▁vision ▁both ▁light ▁and ▁color ▁are ▁considered ▁in ▁sens ory ▁design . ▁Early ▁light ▁meters ▁( called ▁ext inction ▁meters ) ▁re lied ▁on ▁the ▁human ▁eye ▁to ▁gauge ▁and ▁quant ify ▁the ▁amount ▁of ▁light . ▁Sub sequently , ▁analog ▁and ▁digital ▁light ▁meters ▁have ▁been ▁popular ized ▁for ▁phot ography . ▁Work ▁by ▁Lawrence ▁Herbert ▁in ▁the ▁ 1 9 6 0 s ▁lead ▁to ▁a ▁system atic ▁combination ▁of ▁light ing ▁and ▁color ▁samples ▁required ▁to ▁quant ify ▁colors ▁by ▁human ▁eye . ▁This ▁became ▁the ▁basis ▁for ▁the ▁P ant one ▁Match ing ▁System . ▁Com bin ing ▁this ▁with ▁special ized ▁light ▁meters ▁allowed ▁digital ▁color ▁meters ▁to ▁be ▁invent ed ▁and ▁popular ized . ▁ ▁Touch ▁Touch ▁plays ▁an ▁important ▁role ▁in ▁a ▁variety ▁of ▁products ▁and ▁is ▁increasing ly ▁considered ▁in ▁product ▁design ▁and ▁market ing ▁efforts ▁and ▁has ▁led ▁to ▁a ▁more ▁scientific ▁approach ▁to ▁tact ile ▁design ▁and ▁market ing . ▁Class ical ▁the ▁field ▁of ▁trib ology ▁has ▁developed ▁various ▁tests ▁to ▁evaluate ▁interact ing ▁surfaces ▁in ▁relative ▁motion ▁with ▁a ▁focus ▁on ▁meas uring ▁fr iction , ▁lub ric ation , ▁and ▁wear