EN
The paper covers consideration of Electronic Data Interchange (EDI) fundamentals as well as the analyses of 3 case studies for exemplification of proposed by BPSC software company solutions. At first, author presents EDI module implemented in BPSC Impuls 5 information system. Next part includes analysis and explanation of Internet Order System developed within BPSC Impuls 5 system. In the last part, author considers 3 case studies to illustrate EDI solutions. In the case studies the implementation of EDI was done in Castorama retail network, LMC company and IKEA firm.