▁based ▁on ▁Do D AF ▁include ▁the ▁NAT O ▁Architecture ▁Framework ▁( NA F ) ▁and ▁Ministry ▁of ▁Def ence ▁Architecture ▁Framework . ▁Like ▁other ▁E A ▁approaches , ▁for ▁example ▁The ▁Open ▁Group ▁Architecture ▁Framework ▁( TO G AF ), ▁Do D AF ▁is ▁organized ▁around ▁a ▁shared ▁repository ▁to ▁hold ▁work ▁products . ▁The ▁repository ▁is ▁defined ▁by ▁the ▁common ▁database ▁schema ▁Core ▁Architecture ▁Data ▁Model ▁ 2 . 0 ▁and ▁the ▁Do D ▁Architecture ▁Reg istry ▁System ▁( D AR S ). ▁A ▁key ▁feature ▁of ▁Do D AF ▁is ▁inter oper ability , ▁which ▁is ▁organized ▁as ▁a ▁series ▁of ▁levels , ▁called ▁Level s ▁of ▁Information ▁System ▁Inter oper ability ▁( L IS I ). ▁ ▁The ▁developing ▁system ▁must ▁not ▁only ▁meet ▁its ▁internal ▁data ▁needs ▁but ▁also ▁those ▁of ▁the ▁oper ational ▁framework ▁into ▁which ▁it ▁is ▁set . ▁ ▁Cap abilities ▁and ▁mission ▁ ▁See ▁the ▁diagram ▁for ▁a ▁dep iction ▁of ▁the ▁Cap abilities ▁Em phas is , ▁as ▁tied ▁in ▁with ▁mission / course ▁of ▁action , ▁threads , ▁activities , ▁and ▁architect ures . ▁▁ ▁The ▁Do D ▁has ▁moved ▁toward ▁a ▁focus ▁on ▁the ▁delivery ▁of ▁capabilities , ▁which ▁are ▁the ▁reason ▁for ▁creating ▁the ▁system / service . ▁The ▁Cap ability ▁Mod els ▁describe ▁cap ability ▁tax onomy ▁and ▁cap ability ▁evolution . ▁ ▁A ▁cap ability ▁thread ▁would ▁equ ate ▁to ▁the ▁specific ▁activities , ▁rules , ▁and ▁systems ▁that ▁are ▁linked ▁to ▁that ▁particular ▁cap ability . ▁