Rapid prototyping is based no the ADDIE model.  Steps are combined in order to save time and resources.  While this may be a quicker method, there is also more room for error due to the combinations.

The top image represents the final poster and the bottom image represents the draft.  The draft was created using a free online service named, Piktochart.  The final poster was created with the use of Adobe Photoshop (image edits) and Adobe Illustrator (layout).