7 Basics to Create a Good Design Brief

The design brief serves as the guiding document for the project. Think of it as like a business plan for a specific project. It should cover everything necessary to the project, in a manner that is easy to refer to throughout the project timeline.
Make notes on your design briefs once you start the project. Keep your proposal along with it, as well as other important documents. Highlight the important parts of each, or make notes in the margins. Don’t just look it over at the beginning and then file it away somewhere. Effectively using a design brief throughout the process can result in a much better end result.

At http://www.webdesignerdepot.com/2011/03/7-basics-to-create-a-good-design-brief/.