Wireframes are low-fidelity diagrams that illustrate the structure of all elements on specific templates or pages. They allow people to visualize the unique pages first identified by the sitemap. Numbered and color-coded annotations outline the basic behavior of the elements on each wireframe. Wireframes are typically delivered for all templates and a small number of illustrative pages. They are a fast and cost-effective way to produce an idea of how a page on a website or mobile device might behave. They can be developed in parallel to creative concepts and redrawn easily.