The vector base technology provides the way to draw the graphic using geometrical figures and shapes. All the work is done by using the shapes and figures. We can change the shapes. We can edit the properties of the shapes. The properties of a share are its color, outline, outline style, outline color and thickness. We can resize and move the shapes easily. CorelDraw is not the only vector base software. The other are Adobe Illustrator, Macromedia Fireworks, Instant Artist, Print Artits and Aldus Freehand.
The raster base technology is also called the pixel base or bitmap base technology. All the work is done on pixels. We can select the pixels by using special tools. We can reform the image. We can edit the images/pictures. We can mix up two images. We have different effects for the images using plug-ins. The other vector base software is Corel Photo Paint.
Both technologies are used according to the requirements. Sometimes we need to work with vector base technology. Specially, when we want to draw curves and complex shapes. And sometime we need to use raster base technology when we need to work with images and pictures.