The purpose of the Programme Portfolio Relationships subview (NPV-1) is to provide details on the relationships among Projects within major NATO programmes. It shows how projects are grouped to form a coherent acquisition programme and summarizes the interdependencies among projects and the links between project phases. It is also used to identify the level of maturity to be achieved at each stage of a programme's life-cycle.

All this information can be found in the different reports of the NPV-1 subview.