▁approaches ▁the ▁application ▁levels . ▁There ▁are ▁three ▁levels ▁of ▁reporting : ▁A , ▁B ▁and ▁C , ▁but ▁these ▁are ▁not ▁yet ▁leg ally ▁rat ified ▁fund ament als ▁and ▁are ▁only ▁used ▁to ▁assist ▁companies ▁with ▁their ▁sust ain able ▁reports . ▁ ▁On ▁one ▁hand , ▁the ▁UN C SD ▁focus es ▁only ▁on ▁the ▁environmental ▁dimension ▁of ▁the ▁sust ain ability ▁account ing . ▁ ▁On ▁the ▁other ▁hand , ▁the ▁O E CD ▁( Organ ization ▁for ▁Econom ic ▁Co - operation ▁and ▁Development ) ▁focus es ▁only ▁in ▁two ▁frameworks : ▁the ▁analyt ical ▁and ▁account ing ▁frameworks . ▁ ▁Anal yt ical ▁frameworks ▁ ▁Anal yt ical ▁frameworks ▁link ▁information ▁from ▁different ▁areas . ▁Vari ous ▁types ▁of ▁frameworks ▁are ▁being ▁used ▁now ad ays ▁depending ▁on ▁the ▁purpose ▁of ▁measurement . ▁These ▁frameworks ▁seek ▁to : ▁ ▁Integr ate ▁the ▁economic , ▁environmental ▁and ▁social ▁dimensions ▁of ▁sust ain able ▁development ▁ ▁Have ▁sound ▁found ations ▁and ▁to ▁maintain ▁key ▁information ▁needed ▁to ▁improve ▁sust ain able ▁development ▁measurements ▁ ▁Clar ify ▁relationships ▁between ▁different ▁indic ators ▁and ▁policies ▁Some ▁examples ▁of ▁analyt ical ▁frameworks ▁are : ▁Press ure ▁– ▁State ▁– ▁Response ▁( PS R ) ▁model ▁which ▁is ▁based ▁on ▁one ▁of ▁its ▁variants , ▁D riv ing ▁Force ▁– ▁Press ure ▁– ▁State ▁– ▁Imp act ▁– ▁Response ▁used ▁by ▁the ▁European ▁Environment ▁Agency ▁( EE A ), ▁or ▁the ▁D riv ing ▁Force ▁– ▁State ▁– ▁Response ▁model . ▁ ▁One