Book to refer to : Don't make me think : A common sense approach to web usability by Steve Krug
The project documentation should be related to Human Computer Interface.
Suppose that you were designing a computer game without visual output (accessible for someone who was blind, but also appealing to those who are not blind). This will be an adventure style game where the player moves through passages and into rooms. The theme is your choice. Your game must have challenges (for example, monsters that appear and must be shot or hit). There will, of course, need to be a goal (such as a treasure).
Describe a complete run through the game. Be sure to include the following:
Title of the game
Audience & genre: what type of game it is, and who will likely play it
Theme
Goals: goals of the game, how to win/succeed
Mechanics: what the player does to achieve goals
What input and output devices are used? How are they used?
Flowboard. This should show the progression of the game, from beginning to end, and the choices available to the players at each point.
SUBMIT: Your game description in a Word or PDF document. This should be a 2-3 page report, not just a paragraph.