. In some cases there is also an intrinsic coupling among the solutions of the different subprojects,which requires intensive interaction and discussion among the teams involved. This is the case of the mooring system allows the production unit to experience high fluctuations, this can damage the production risers ; on the other hand , the mere presence of risers helps to reduce the movements of the production unit , contributing positively to the equilibrium of the system. In order to achieve collaboration and interoperability between those subprojects , a software – based interface is required .