The cooperation during the entire project is indispensable to succeed. The most important part in implementation is the analysis of reporting/business requirements for BI system. It is necessary to speak with the responsibles to clarify their expectations. It is very important to establish infrastructure and an access to source systems. An evident part of project, with the cooperation of both teams, is the solution receipt stage. Trainings for final users and administrators is also one of the most importants stages in the whole process.