Preparing a Plan and Profile drawings in a cad package

In CAD Package, there are two distinct working environments, called "model space" and "paper space," in which you can work with objects in a drawing. By default, all the drawings are prepared in the model space. You can set the units as per your convenience. Generally, the drawings are prepared with a 1:1 scale in model space.

In Paper space you can represent various views of the model space, mainly for preparing output. You can also manually draw entities for title block and other requirements in paper space. You can create multiple layouts in the same drawing. In paper space, it is allowed to create viewports with different scales. On each layout, you create layout viewports that display different views of model space. In the layout viewports, you scale the model space views relative to paper space. One unit in paper space represents the actual distance on a sheet of paper, either in millimetres or inches, depending on how you configure your page setup.