There are three different types of design software. The functions and the file output vary between each program and may not always transfer file types from one software package to the next. The third type will be covered in section two with 3D Printers.
(Lines and Shapes)
*CorelDraw
*Maya
Vector images are defined by lines stretched across vertexes (nodes). A straight line is defined by a start point and an end point. Since the vector shape is redrawn at every zoom level it will maintain crisp smooth edges at any resolution and zoom level. This format is ideal for printing since it can be scaled to fit any media.
Raster images are defined by rows and columns of individual dots (pixels) each having its own color and alpha. This is a very versatile and easily manipulated format. Unfortunately it does not scale up easily. As shown in the upper example, when a bitmap is scaled up or zoomed in the pixels become apparent. For normal use the advantages of bitmaps outweigh the scaling issues. However when it comes to outputting to a printer is when there are significant problems.