. ▁W ellen re uther ▁was ▁primarily ▁responsible ▁for ▁the ▁architecture ▁and ▁the ▁concept ▁of ▁the ▁S AP ▁R / 2 ▁financial ▁account ancy ▁module . ▁ ▁W ellen re uther ▁left ▁the ▁business ▁in ▁ 1 9 8 0 ▁for ▁health ▁reasons ▁and ▁received ▁a ▁compens ation ▁of ▁ 1 ▁million ▁DM . ▁▁ ▁In ▁ 1 9 8 2 ▁he ▁founded ▁DC W ▁Software ▁( Dr . ▁Cla us ▁W ellen re uther ▁GmbH ▁& ▁Co . ▁K G ), ▁which ▁he ▁developed ▁into ▁a ▁special ist ▁for ▁middle - s ized ▁ER P ▁software . ▁The ▁company ▁was ▁acquired ▁by ▁S AP ▁in ▁ 2 0 0 3 . ▁The ▁" de al ▁among ▁friends " ▁was ▁heavily ▁critic ized ▁by ▁DC W ▁customers ▁that ▁had ▁explicitly ▁decided ▁for ▁an ▁alternative ▁to ▁S AP . ▁In ▁ 2 0 0 4 ▁DC W ▁was ▁merged ▁with ▁the ▁S AP ▁subs idi ary ▁Ste eb ▁An wendung ss ystem e ▁GmbH . ▁ ▁References ▁ ▁External ▁links ▁Picture ▁of ▁Cla us ▁W ellen re uther ▁ ▁Category : 1 9 3 5 ▁birth s ▁Category : Bus iness people ▁in ▁software ▁Category : G erman ▁company ▁found ers ▁Category : L iving ▁people ▁Category : Pe ople ▁from ▁Mann heim ▁Category : S AP ▁SE ▁people ▁Category : Univers ity ▁of ▁Mann heim ▁al umn i <0x0A> </s> ▁George ▁Hol mes ▁Chal lies ▁( August ▁ 2 6 , ▁ 1 8 8 4 ▁– ▁March ▁ 1 5 , ▁