There are two types of graphic design art elements used by Graphic Designers: vector graphic design art elements and raster graphic design art elements. Raster graphic design art elements are limited to the original dimensions (width x height) and resolutions (pixels per square inch) at which they are created. This means raster graphic design art elements cannot be scaled to a larger size without pixelation.  Pixelating causes raster graphic design art elements to become visually blurry and makes text difficult to read.  Sometimes Graphic Designers have to recreate a raster graphic art element at a larger dimension and resolution in order to meet a client's needs. In the end, this costs the client more money and time. 

With vector graphic design art elements, the Graphic Designer only has to worry about the dimensions of the large piece being made, and where the vector graphic design art elements hit on the composition. With vector graphic design, resolution is not a problem because vector graphic designs will not pixelate when they are scaled. A Graphic Designer can scale a vector graphic design as large or as small as needed. However, in order to take full advantage of vector graphic designs, a vector graphic design program must be used.

Something else to remember is that a vector graphic design art element can be flattened and turned into a raster graphic design art element, but a raster graphic design art element cannot be turned directly into a vector graphic design art element. The only way a raster graphic design art element can be turned into a vector graphic design art element is to recreate it in a vector graphic design program.