Following the order of activities defined by figure 4 to execute the engineering design, the first step is to plan and to define the scope of the design. To the purpose of this paper the scope is to design a generic ship. The requirements of this ship are that common to almost all ships, like velocity, stability, seakeeping and others. There are specific activities to address those requirements. To define the activities and to map the interactions among them, we base on the Principals of Naval Architecture (Lewis, 1989), traditional book of Naval Engineering, on Laverghetta (1998), and on Bogosian Neto (2005). At least all activities listed on this paper must be executed to design ships. However, each ship has its own requirements and it must be translated into activities to address them. The manager must know how these activities interact with the others activities listed on this paper.