Concept Art, Visualisation Diagrams, Flat Plans, Prototypes and Mock Ups

Concept Art
Concept art is portraying ideas across through a form or writing or images. Creating the ideas before the actual form of production.

Visualisation Diagrams
This is a technical drawing for creating images, diagrams or animations. It does not have to be stuck too, but its for a general idea. Used to help sketch an idea. It can have annotations, to give you a spring board or starting place for the project or idea.

Flat plans
A plan for the structure of a media product. They are all print documents, for example, a newspaper, magazine, leaflet or booklet.

Prototypes
First versions of products with cheap materials to see if the product works. A one off sample. These are before the actual versions of the products are created, for a test of functionality.

Mock Ups
A model or sample of what something will look like. It is for the aesthetics, not the functionality (like the prototype). It is to see what looks best and how anything could look better. It can be in the form of anything (mostly digital).