Process diagrams help with the design of such projects as ships and plants by empowering you to define sizes and equipment types, and to prove system operation prior to committing any time to 3D design.
NX enables engineers to lay out piping and instrumentation diagrams (P&ID) in two dimensions, while maintaining the design tied to the 3D space model. P&ID Designer powers faster authoring, common libraries between diagramming and 3D, connectivity validation, diagramming to 3D, and equipment-level data management.