At this point of the process concept design is converted into a digital drawing library, that is needed by the shipyard. This is the stage where all the parts and components are defined, both in terms of shape, dimension, material, construction, ergonomy and technology. To assure accuracy and precision of construction, interior is first modeled in 3D computer environment and then transposed into 2D CAD drawings containing plans, sections, elevations, general details, as well as each material finish.