HELSINKI--(BUSINESS WIRE)--Regulatory News: Tieto (HEX:TIE1V) (STO:TIEN) Tieto Corporation STOCK EXCHANGE RELEASE 17 August 2015 at 14.00 EET The Norwegian Competition Authority has approved the acquisition of Software Innovation, which Tieto announced on 25 June. The business operations will be transferred to Tieto today in connection with the transaction closing. Software Innovation is a leading software company in enterprise content management (ECM) in the Nordic countries, serving both the