A window can be compared to a camera. When you look through a camera, you see a view of a real-world object. When you look through a window on the computer screen, you see a view of the objects in the design space or on the drawing sheet.
Using commands in the View tab→Window group, you can create and arrange new windows that allow you to see more than one section of a document or more than one document.
Views are what you see in windows, ie. the way a part, profile, assembly, or drawing appears. Just as you can use a camera to zoom in, zoom out, and pan the view you are looking at, you can use views to home in on the area of a design or drawing you want to see. You can change the background color of the view window. This is very helpful when there is very little contrast between the part you are viewing and the background.
For 3-D part and assembly models, views give you even more flexibility. Just as you can move a camera above, below, and around real-world objects, you can view the part and assembly models from any orientation.