Before analyze the activities of ship design following the order provided by figure 4, some conclusions can be taken from the analysis of the planning activities. The first one is that interaction analysis plays a vital role to the project. The interaction analysis is inserted in the Activity Sequencing. Looking the figure 4 we observe that Communications Planning, Organizational Planning and Schedule Development are dependent on Activity Sequencing. Therefore, we need to define the activities of engineering design and map the interactions among them to analyze and define the communications and organizational planning such as the schedule development. It will be demonstrate later.