. ▁These ▁files ▁instruct ▁a ▁supp lier ▁on ▁the ▁units ▁sold ▁and ▁units ▁on ▁hand ▁at ▁a ▁store ▁and ▁item ▁level . ▁X 1 2 . 8 5 2 ▁files ▁are ▁typically ▁provided ▁on ▁a ▁daily ▁or ▁week ly ▁basis . ▁These ▁files ▁are ▁usually ▁referred ▁to ▁as ▁" product ▁activity ▁data ." ▁The ▁Data ▁Inter change ▁Stand ards ▁Association ▁provides ▁detailed ▁specific ations ▁for ▁E DI ▁documents ▁and ▁helps ▁to ▁control ▁international ▁standards . ▁ ▁Because ▁E DI ▁ 8 5 2 ▁documents ▁are ▁at ▁an ▁U PC ▁level ▁data ▁files ▁they ▁are ▁usually ▁large ▁files ▁with ▁many ▁records . ▁After ▁extract ing ▁the ▁data ▁from ▁the ▁. edi ▁format ▁a ▁rel ational ▁database ▁is ▁often ▁required ▁to ▁provide ▁the ▁business ▁anal yst ▁with ▁the ▁ability ▁to ▁report ▁on ▁the ▁data . ▁Altern atives ▁to ▁building ▁an ▁in - house ▁database ▁are ▁to ▁purchase ▁a ▁pack aged ▁D SR ▁and ▁B I ▁application ▁or ▁use ▁a ▁third - party ▁service ▁company ▁to ▁report ▁on ▁the ▁data . ▁ ▁X 1 2 . 8 5 2 ▁files ▁vary ▁by ▁implementation ▁but ▁typically ▁contain ▁the ▁following ▁information : ▁ ▁For ▁each ▁item ▁ ▁- ▁Item ▁description ▁- ▁Item ▁U PC ▁ ▁Data ▁can ▁be ▁summar ized ▁by : ▁- ▁Store ▁- ▁Distribution ▁center ▁ ▁Key ▁product ▁activity ▁measures ▁- ▁Quant ity ▁sold ▁($ ) ▁- ▁Quant ity ▁sold ▁( un its ) ▁- ▁Quant ity ▁on ▁hand ▁($ ) ▁- ▁Quant ity ▁on ▁hand ▁( un its ) ▁- ▁Quant ity ▁on ▁order ▁($